Question about 1989 Toyota Camry

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Engine runs rough and gets worse when accellerating

2VZ-FE engine

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  • Toyota Master
  • 992 Answers

PROBLEM TROUBLE AREA
Rough idle, stalls or
hesitate on acceleration :
.Spark plug faulty
. High-tension cords faulty
Ignition problems:
• Ignition coil
• Igniter
• Distributor
. Incorrect ignition timing
Vacuum leaks:
. PCV valve and line.. .
. EGR line..
. Intake manifold.
• Throttle body
• ISC valve
• Brake booster line

• Throttle body
• Brake booster line
. Incorrect idle speed
. Reset timing
. Adjust valve clearance
. Check fuel system . Check air cleaner
. Incorrect valve clearance
. EFI system problems
. Low compression


Posted on Dec 12, 2013

  • 13 more comments 
  • Mike Shubert
    Mike Shubert Dec 13, 2013

    Shouldn't the check engine light come on and since it's not does that mean the ECU doesn't detect the problem ... would there still be trouble code ? A trouble code would help narrow it down and Just curious before I head out in this weather ! My Haynes repair manual and AutoZone site doesn't say much about the 89' Camry Le 2VZ-FE V6 engine need more pics !! Thank you Lodhi Autos for

  • Lodhi Autos
    Lodhi Autos Dec 13, 2013

    Hi Mike, thank you for your comment. 1989 was the time when the OBS2 and CAN systems were not introduced.

  • Lodhi Autos
    Lodhi Autos Dec 13, 2013

    Sorry for misprinting OBD2. What I was saying that only blink codes were available and exercised to diagnose the problems. Misfire detection and various more on board test facility is only available with the vehicles which are produced after 1996 and more features are added, I think from 2004. Now that CAN (Controller Area Network) is widely used in almost all modern cars and trucks, it offers more options to diagnose any problem very precisely and accurately. The blink codes at that time were only concerned about the sensors and indicated the problematic area.

  • Mike Shubert
    Mike Shubert Dec 13, 2013

    So are you saying the blink codes won't help me to narrow this down a little? Like is it fuel system or Ignition problems, emmisions maybe or Egr, Map senser or ? And I've never checked blink codes before so here I am and appreciating any advice I can get ! thanks

  • Lodhi Autos
    Lodhi Autos Dec 14, 2013

    Thank you for contacting me again. Now let us go into little more detail. You are saying that you have Toyota Camry, model year is 1989. If it is so, the engine is 3S-FE. Diagnostic Trouble Codes ________________________________________ By checking the trouble codes, a possible problem could be narrowed down to a number of causes. It is not an exact diagnostic tool, the check engine light and self-diagnostic system can get the individual working on on your car close to a possible fault. Listed below are one and two digit trouble codes for the EFI/TCCS systems and possible causes. HOW TO READ TROUBLE CODES Reading the diagnostic trouble codes is very easy. Take a paper clip to short the check connectors of the diagnostic connector. '87 and newer models use a multiple terminal "DIAGNOSTIC" connector which is a small, rectangular-shaped grey "box", usually located near the right fender in the enigne compartment. To get codes out of this type of connector, jump the "TE1" and "E1" teminals. The inside cover of the diagnostic connector contains a schematic of the connector pinouts. As you open the connector lid, lay it down and see the pinouts print. The trouble codes will appear as flashes of the check engine lamp. Make sure the ignition key is on, the engine off, and lift your foot off of the accelerator when reading the codes. Two different codes may appear: One-digit and two digit. One digit codes have an approximate 4.5 second delay between flashes with the check engine light illuminating for about a half of a second. Mulitiple codes have a 2.5 second delay between them. For example a code two flashes the check engine lamp two times in a little over one second: I I. If two codes are stored, such as a code two and a code four, the lamp may flash as such: ....I I....I I I I. Crude examples but you get the idea. Two digit codes are similar but will flash the lamp with the first number first and the second number last. An example of a code twleve is I ....II and a code twenty four is I I..IIII. TROUBLE CODES AND POSSIBLE CAUSES ONE-DIGIT TWO-DIGIT AREA OF TROUBLE AND CAUSES 1 NONE SYSTEM NORMAL -- 11 LOSS OF POWER SUPPLY TO ECU --IGNITION SWITCH/CIRCUIT --MAIN RELAY/CIRCUIT --ECU 6 12 RPM SIGNAL-NO SIGNAL TO ECU FROM DISTRIBUTOR ("Ne" OR "G") AFTER ENGINE HAS BEEN CRANKED --DISTRIBUTOR/CIRCUIT --STARTERSIGNAL CIRCUIT --IGNITER/IGNITER CIRCUIT --ECU -- 13 SAME AS ABOVE BUT AFTER ENGINE HAS RUN AT 1,000-1,500 RPM --DISTRIBUTOR/DISTRIBUTOR CIRCUIT --ECU 3 14 IGNITION SIGNAL--NO "IGF" SIGNAL TO ECU --IGNITER/IGNITER CIRCUIT --IGNITER AND IGNITION COIL/CIRCUIT --ECU 5 21 OXYGEN SENSOR SIGNAL/OXYGEN SENSOR HEATER SIGNAL OPEN OR SHORT IN OXYGEN SENSOR OR OXYGEN SENSOR SIGNAL 4 22 WATER TEMPERATURE SENSOR SIGNAL--OPEN OR SHORT IN WATER TEMP. SENSOR SIGNAL --WATER TEMPERATURE SENSOR CIRCUIT --WATER TEMPERATURE SENSOR --ECU 8 24 INTAKE AIR TEMPERATURE SENSOR SIGNAL--OPEN OR SHORT IN INTAKE AIR TEMP. SIGNAL --INTAKE AIR TEMPERATURE CIRCUIT --INTAKE AIR TEMPERATURE SENSOR --ECU -- 25 AIR/FUEL RATIO LEAN INDICATOR--LEAN SIGNAL SENT TO ECU FROM O2 SENSOR --INJECTOR FAULT(S) --FUEL PRESSURE --OXYGEN SENSOR --AIRFLOW METER OR MAP SENSOR --IGNITION --ECU -- 26 AIR/FUEL RATIO RICH INDICATOR --SAME AS ABOVE --COLD START INJECTOR -- 27 SUB-OXYGEN SENSOR CIRCUIT OR SUB-OXYGEN SENSOR HEATER CIRCUIT --SUB OXYGEN SENSOR/HEATER/CIRCUIT --ECU -- 28 No.2 OXYGEN SENSOR/OXYGEN SENSOR HEATER --SAME AS CODE 21 2 31 MANIFOLD AND/OR AIRFLOW METER SENSOR SIGNAL CIRCUIT --AIRFLOW METER/CIRCUIT --MANIFOLD PRESSURE SENSOR/CIRCUIT --ECU -- 32 AIRFLOW METER SIGNAL (VANE-TYPE) --AIRFLOW METER./CIRCUIT --ECU 14 34 TURBOCHARGER PRESSURE--ABNORMAL TURBOCHARGER PRESSURE --TURBO CHARGER --AIRFLOW METER/MANIFOLD/TURBOCHARGER PRESSURE SENSOR --INTERCOOLER SYSTEM --ECU -- 35 TURBOCHARGER PRESSURE SENSOR SIGNAL --TURBOCHARGER PRESSURE SENSOR --ECU 7 41 THROTTLE POSITION SENSOR SIGNAL--OPEN OR SHORT IN TPS SIGNAL --TPS SENSOR --TPS SIGNAL/CIRCUIT --ECU 9 42 VEHICLE SPEED SENSOR SIGNAL CIRCUIT--NO SPD. SIGNAL FOR SEVERLA SECONDS WHILE VEHICLE IS OPERATED UNDER HEAVY LOAD (TPS/MAP/AIR FLOW INPUTS) --SPEED SENSOR/CIRCUIT --ECU 10 43 STARTER SIGNAL--NO "STA" SIGNAL TO ECU UNTIL ENGINE SPEED EXCEEDS 800RPM --IGNITION SWITCH/CIRCUIT --ECU 11 51 SWITCH SIGNALS IDL (tps) CONTACTS OFF, NEUTRAL START SWITCH OFF, A/C SWITCH "ON" SIGNAL TO ECU WITH DIAGNOSTIC CHECK CONNECTOR SHORTED --A/C SWITCH/CIRCUIT --A/C AMPLIFIER --TPS/CIRCUIT --NEUTRAL START SWITCH/CIRCUIT --ECU 12 52 KNOCK SENSOR SIGNAL--OPEN OR SHORT IN KNOCK SENSOR SIGNAL --KNOCK SENSOR/CIRCUIT ECU 13 53 KNOCK CONTROL SIGNAL IN ECU --ECU -- 71 EGR VALVE MALFUNCTION--EXHAUST GAS TEMPEATURE BELOW SPEC. FOR EGR CONTROL --EGR SYSTEM --EGR GAS TEMPERATURE SENSOR/CIRCUIT - - 72 AIR CONDITIONER COMPRESSOR RELAY/RELAY SIGNAL --A/C COMPRESSOR RELAY/CIRCUIT --ECU

  • Lodhi Autos
    Lodhi Autos Dec 14, 2013

    Make a 3 column table named 1(one digit codes), 2(two digit codes), 3(Area of trouble). It will be a little laborious task but do it and keep it for your future reference.

  • Mike Shubert
    Mike Shubert Dec 14, 2013

    Well to start I really hope you didn't have to type all that ! I have a Haynes repair manual that has the codes. So on the inside of the hood it says the engine is the 2VZ-FE V6 so I've been confused because it's hardly mentioned in my manual or anywhere I found. is the 3S-FE engine and the 2VZ-FE engine basically the same ? if yes before I go get the codes.I have a question why didn't my check engine light ever come on ? does that mean the ECU didn't recocrd the fault code and is not working properly ??

  • Lodhi Autos
    Lodhi Autos Dec 15, 2013

    Hello Mike, Toyota Camry had three models, in the year 1989. 3S-FE (2.0L 4-cylinder), 2VZ-FE (2.5L 6-cylinder) and 2.0 Diesel 2C-T. The confusion was created because you did not provide the further details. Any way the codes are same in both 3S-FE and 2VZ-FE. Some times it happen that the error codes are not displayed by the MIL on the meter, but the problems could be still there and be related to the actuators and the engine mechanical.

  • Mike Shubert
    Mike Shubert Dec 15, 2013

    ok thanks I'll let you know tommorow what the codes say and I really appreciate your help

  • Mike Shubert
    Mike Shubert Dec 18, 2013

    got code 41 which is Throttle position circuit or senser and code 51 Throttle position circuit or senser, A/C and Neutral start switch and circuit. All checked out fine except for A/C which is not hooked up. So I went for a drive and engine misses (like it's running on 5 cyl) at idle speed throughout drive speed range. Until I went up a hill then it was like was running 3cyl. So the bigger the load the worse it is. Fuel pump, fuel filter, regulator ect ect... Hoping filter I do have pressure in the the hose to regulator but is it enough ? We will see tomorrow.

  • Lodhi Autos
    Lodhi Autos Dec 18, 2013

    Code 41. Throttle Position (TP) Sensor. Trouble areas.-TP Sensor, wiring, or ECM. Check and confirm the following: Disconnect the TP Sensor connector. It has 4 pins. The right most male pin is number 1, next to it is number 2, then 3 and the left most is pin 4. Have a

  • Lodhi Autos
    Lodhi Autos Dec 18, 2013

    Please WAIT some thing went wrong with my computer.

  • Lodhi Autos
    Lodhi Autos Dec 19, 2013

    Please have the details how to repair the code number 41

  • Lodhi Autos
    Lodhi Autos Dec 19, 2013

    Have another image

  • Lodhi Autos
    Lodhi Autos Dec 19, 2013

    rt is RED, sw is BLACK, br is BROWN

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  1. Disconnect the crankshaft position sensor harness. Fig. 1: Exploded view of the crankshaft position sensor mounting 86824pa8.gif

  2. Remove the bolt retaining the sensor to the vehicle.
  3. To install, attach the sensor to the vehicle, tighten to 69 inch lbs. (8 Nm).
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My idle drops everytime i come to a complete stop and even when i put it into reverse and also sometimes the car shuts down...


Idle Air Control (IAC) Valve OPERATION The ECM is programmed with specific engine speed values to respond to different engine conditions (coolant temperature, air conditioner on/off, etc.). Sensors transmit signals to the ECM which controls the flow of air through the bypass of the throttle valve and adjusts the idle speed to the specified value. Some vehicles use an Idle Speed Control (ISC) valve while others use an Air Valve (AV) or Idle Air Control (IAC) valve to control throttle body by-pass air flow. TESTING 2S-ELC Engine
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  4. Bring the engine to normal operating temperature with transmission in N.
  5. Using a jumper wire, connect the terminals TE1 and El of the check connector (DLC 1). Fig. 1: Attach a jumper wire to the terminals TE1 and E1 in the DLC 1 89554g46.gif

  6. The engine rpm should rise to 900-1300 rpms for 5 seconds. Check that it returns to idle speed. If rpm is as specified, the valve is functioning properly.
  7. If rpm did not function as specified, stop the engine and disconnect the jumper wire.
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    Fig. 3: Attach an ohmmeter and measure the resistance between the three terminals - 5S-FE engine 89554g47.gif

  10. The resistance should be 16-17 ohms on the 3S-FE engine and 19.3-22.3 ohms on the 5S-FE engine.
  11. If not as specified, replace the ISC valve.
1MZ-FE Engine NOTE: The idle speed must be set correctly before testing the valve. Make sure the A/C is off during testing. Fig. 4: The IAC valve is attached to the lower portion of the throttle body 89554p46.jpg
  1. Bring the engine to normal operating temperature with transmission in N.
  2. Using a jumper wire, connect the terminals TE1 and El of the check connector (DLC 1).
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  6. Using an ohmmeter, measure the resistance between the +B terminal (middle terminal) and the RSC and RSO outer terminals. Fig. 5: Attach an ohmmeter and measure the resistance between the three terminals - 1MZ-FE engine 89554g48.gif

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2VZ-FE and 3VZ-FE Engines
  1. Disengage the ISC valve connector.
  2. Using an ohmmeter, measure the resistance between the B1 terminal (lower middle terminal) and the S1 or S3 (lower outer terminals), and between B2 terminal (upper middle terminal) and the S2 or S4 (upper outer terminals). Fig. 6: ISC terminal identification - 2VZ-FE and 3VZ-FE engines 89554g50.gif

  3. If the resistance is not 10-30 ohms, replace the ISC valve.
  4. Apply battery voltage to terminals B1 and B2 while repeatedly grounding S1, S2, S3, S4, S1 in sequence. Check that valve moves toward the closed position. Fig. 7: Testing the IAC using battery voltage to see if the valve will close-2VZ-FE and 3VZ-FE engines 89554g51.gif

  5. Apply battery voltage to terminals B1 and B2 while repeatedly Grounding S4, S3, S2, S1, S4 in sequence. Check that valve moves toward the opened position. Fig. 8: Testing the IAC using battery voltage to open the valve - 2VZ-FE and 3VZ-FE engines 89554g52.gif

  6. If valve does not function as specified, replace the ISC valve.
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REMOVAL & INSTALLATION (4 Cyl. eng.) CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
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    Fig. 2: Removing the thermostat from the engine - 1MZ-FE engine 89553p19.jpg
    Fig. 3: Always discard the old O-ring from the thermostat, if reusing the old component 89553p20.jpg
    Fig. 4: Always replace the thermostat with the correct temperature specifications 89553p21.jpg
    Fig. 5: Line-up the jiggle valve with the protrusion on the housing - 5S-FE engine 89553g10.gif

  10. Position the water inlet housing with the thermostat over the studs on the water pump and install the two nuts. Tighten the two nuts to 78 inch lbs. (9 Nm) on 4 cyl. engines, 2VZ-FE and 3VZ-FE; 14 ft. lbs. (20 Nm) and 69 inch lbs. (8 Nm) on 1MZ-FE engines. Fig. 6: Thermostat installation - 2VZ-FE and 3VZ-FE engines 89553g11.gif
    NOTE: Don't forget to install a new O-ring onto the water inlet pipe. Apply soapy water to the O-ring prior to installation.
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  12. Attach the water temperature switch connector.
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Oct 08, 2010 | 1990 Toyota Camry

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b21be77.gif

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2 Answers

How to replace thermostat


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On both diesel and gasoline engines, the thermostat is located in the water inlet housing connected to the lower radiator hose.

R
CAUTION Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
Gasoline Engines
(see Figures 1, 2, 3, 4, 5, 6 and 7)
  1. Position a suitable drain pan under the radiator drain **** and drain the cooling system.
  2. On the 1MZ-FE engine, remove the air cleaner cap assembly. Be sure to label all wiring disconnected.
  3. Disconnect the water temperature switch harness from the water inlet housing (except 5S-FE engines).
  4. Remove the oil filter on 5S-FE engines. On the 1MZ-FE engines, remove the heater hose covering the housing.
  5. Loosen the hose clamp and disconnect the lower radiator hose from the water inlet housing.
  6. Remove the two nuts from the water inlet housing and remove the housing from the water pump studs.
  7. Remove the thermostat and rubber O-ring gasket from the water inlet housing.
To install:
  1. Make sure all the gasket surfaces are clean. Clean the inside of the inlet housing and the radiator hose connection with a rag.
  2. Install the new rubber O-ring gasket onto the thermostat. On 2SE and 3S-FE engines, align the jiggle valve of the thermostat with the protrusion on the water inlet housing. On 5S-FE engines, align the jiggle valve with the upper side of the stud bolt. On 2VZ-FE and 3VZ-FE engines, align the jiggle valve with the stud bolt. Insert the thermostat into the housing.
762d5d3.jpg

Fig. Fig. 1: Remove the thermostat housing from the engine with the coolant temperature sensor-1MZ-FE engine

1994ef0.jpg

Fig. Fig. 2: Removing the thermostat from the engine-1MZ-FE engine

4344e0c.jpg

Fig. Fig. 3: Always discard the old O-ring from the thermostat, if reusing the old component

2ff0a56.jpg

Fig. Fig. 4: Always replace the thermostat with the correct temperature specifications

e50fd7b.jpg

Fig. Fig. 5: The thermostat is placed in between the housing and the cylinder head as shown here-2S-ELC and 3S-FE engines

f5e46a6.jpg

Fig. Fig. 6: Line-up the jiggle valve with the protrusion on the housing-5S-FE engine
  1. Position the water inlet housing with the thermostat over the studs on the water pump and install the two nuts. Tighten the two nuts to 78 inch lbs. (9 Nm) on 4 cyl. engines, 2VZ-FE and 3VZ-FE; 14 ft. lbs. (20 Nm) and 69 inch lbs. (8 Nm) on 1MZ-FE engines.
62e4095.jpg

Fig. Fig. 7: Thermostat installation-2VZ-FE and 3VZ-FE engines
Don't forget to install a new O-ring onto the water inlet pipe. Apply soapy water to the O-ring prior to installation.
  1. Connect the lower radiator hose to the inlet housing and install the hose clamp. On the 3VZ-FE, tighten the bolt holding the water inlet hose to the alternator belt adjusting bar to 14 ft. lbs. (20 Nm). On the 1MZ-FE engine, tighten the bolt retaining the water inlet pipe to the cylinder head to 14 ft. lbs. (20 Nm).
  2. Attach the water temperature switch connector.
  3. On the 1MZ-FE engines, install the heater hose removed.
  4. Install the oil filter and check the oil level if removed. Install the air cleaner cap assembly on the 1MZ-FE engines.
  5. Fill the cooling system with a good brand of ethylene glycol based coolant.
  6. Start the engine and inspect for leaks.

continue...

Sep 29, 2009 | 1994 Toyota Camry

3 Answers

I want to know the timing mark on a 1996 toyota camry 2.2L


1C-LTC and 2CL-TC Engines
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2VZ-FE and 3VZ-FE Engines
860d64a.gif


You can find more details in Autozone.com (free register); select Year, Mark, Model, Engine.

I hope help you with this. Good luck (rated this)

Sep 01, 2009 | 1996 Toyota Camry

1 Answer

Firing order


3S-FE (4 cyl) 1-3-4-2
2VZ-FA (6 cyl) 1-2-3-4-5-6

Jun 14, 2008 | 1990 Toyota Camry

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