Question about 1992 Toyota 4Runner

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86 4runner will not start,put new fuel pump @ filter,computer,relays,cold start valve,egr valve@new fuel injectors,coil @mass air flow sensor still will not start

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  • weaverk Sep 17, 2008

    I have a 88 toyota pickup. I purchased this truck about 6 months ago. The truck came with nothing but the top and lower intake manifolds. The truck now has a fresh rebuild. after changing out tanks and fuel pumps, the engine still will not start. I tested the injectors and they all tested out good. I have fuel to the injectors and spark to the engine what is the problem?

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Your problem very well maybe that the new inline fuel pump that you put in does not supply sufficent fuel pressure to let it run... so to solve it i know it is expensive but you will probally have to put a tank fuel pump in.

Posted on Oct 03, 2008

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My golf mk4 stalls while driving


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97 Grand am v6 up & down idle. Driving =steady acceleration. I've changed, O2 sensor, throttle positioning sensor. Scan is still saying Random misfires? Get warm won't start.


P0300 Random misfire - lean condition , vacuum leak , low fuel pressure , fuel filter plugged partially , mass air flow sensor .
If the misfire is random, check for the following conditions:
?€¢
System Grounds: Ensure all connections are clean and properly tightened.


?€¢
MAF: A Mass Air Flow (MAF) sensor output that causes the PCM to sense a lower than normal air flow will cause a lean condition.


?€¢
Air Induction System: Air leaks into the induction system which bypass the MAF sensor will cause a lean condition. Check for disconnected or damaged vacuum hoses, incorrectly installed or faulty crankcase ventilation valve, or for vacuum leaks at the throttle body, EGR valve, and intake manifold mounting surfaces.


?€¢
Fuel Pressure: Perform a fuel system pressure test. A faulty fuel pump, plugged filter, or faulty fuel system pressure regulator will contribute to a lean condition.


?€¢
Injector(s): Perform injector coil/balance test to locate faulty injector(s) contributing to a lean or flooding condition. In addition to the above test, check the condition of the injector O rings.


?€¢
EGR: Check for leaking valve, adapter, or feed pipes which will contribute to a lean condition or excessive EGR flow.

Reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.

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Where is the knock sensor on a Kia Sedona 2.9 diesel, 2004 LA


Hi,
Here is the location of the "Knock Sensor" you requested, I hope it helps you. It is Number 17. for future reference here is the list of the others
1 = Camshaft position sensor (CMP)
2 = Crankshaft position sensor (CKP)
3 = Engine Control relay (EC) -engine bay fusebox/relay plate 1
4 = Engine Coolant temperature sensor (ECT)
5 = Exhaust gas recirculation valve actuator (EGR)
6 = Fuel Filter
7 = Fuel Filter Heater - in fuel filter housing
8 = Fuel Flow control valve - on high pressure fuel pump
9 = Fuel Rail pressure sensor(FRP)
10 = Fuel Temperature sensor - on high pressure fuel pump
11 = Glow Plugs
12 = Glow Plug Relay 1 - engine bay fuse box/relay plate 2
13 = Glow Plug relay 2 - engine bay fuse box/relay plate 2
14 = High Pressure fuel pump
15 = Injectors
16 = Intake air temperature sensor (IAT) - in MAF sensor
17 = Knock Sensor (KS)
18 = Mass Air Flow sensor (MAF)

25399765-f5d0u4e2gjrctbiof2rrhyew-2-0.jpg

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2007 NISSAN QUEST It starts and then dies within 2-3 seconds.


hello good day, reverse your air filter, make the bottom to top,, if is not work change the high tension wires

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Truck shut off as i approached a red light and now will not restart.have already tried new fuel pump,new batteries,3 injectors ,camshaft sensor. what can i do now


COULD HAVE FAULTY FUEL PUMP RELAY OR FUSE.FUEL FILTER FILTER STOPPED UP.SCAN TRUCK FOR MASS AIR FLOW SENSOR FAULT - IDLE SPEED CONTROL FAULT.AND EGR VALVE FAULT.CHECK FOR BATTERY POWER.SHOULD BE 12.5 VOLTS AT BATTERY IF NOT FAULTY ALTERNATOR WILL ALSO SHUT DOWN VECHICLE.

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OBDII SETS CODES P0401, P0171 & P0174 . 1998 Mercury Sable


P0401- Exhaust Gas Recirculation Flow Insufficient Dectected
Possible causes - Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control valve stuck closed
- EGR volume control solenoid valve
- Dead (Weak) battery
- EGR passage clogged
- Exhaust gas leaks Possible solution - Clean EGR Valve
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve
Code P0171- Fuel Injection System Too Lean Bank 1 Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem P0174- Fuel Injection System Too Lean Bank 2 Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem.

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2 Answers

My blazer has a new fuel filter, egr valve and


As a quick test,fill-up the tank and do not top off.

Monitor the starting problem.

If you're starting OK until BELOW 1/3 of the tank then it's a weak/failing fuel pump.

=====
Mass air flow (MAF) senor provide air temp/density to the computer.

Buy a can of MAP cleaner and follow the instruction on the can.
=====

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1.9 Litre blows black soot and wont go over 40 kilometers an hour


you probably need a new mass air flow sensor. disconnect and drive it. I had the same problem and when I disconnected the sensor it ran good.

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1999 Ford Taurus mechanical problem


Hello,
your problem appears to be the idle control motor located on the air intake manifold it is a small motor that goes bad quite often. Other items that can cause this is a bad /clogged air filter or a tune up (spark plugs and wires), or clogged fuel injectors. to clean the injectors you can buy a container of fuel system cleaner and pour it into the gas tank and as you drive it cleans the system.

Once the fuel system is cleaned via a tankful of cleaner & gas then the idle controller motor would be next on the list to be replaced.

Good Luck !
Rich Lilja

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