Question about 1992 Honda Accord

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I replaced some bent valves but the engine still aint performing optimally; it wouldn't start until i put fuel in the injector

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Sounds like a bad fuel pump

Posted on Jun 02, 2011

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Check fuel pressure ?

Posted on Jul 05, 2011

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How do you bleed a diesel pump jeep Cherokee turbo diesel 3.1 5 cylinder 2001


we dont have this engine here, USA.
but i have the WG jeep book,
starting page 12 , chapter 14


FUEL INJECTION PUMP BLEEDING
(1) If the fuel injection pump has been replaced,
air should be bled at the overflow valve before
attempting to start engine.
(a) Loosen the overflow valve (Fig. 18) at the
rear of the injection pump.
(b) Place a towel below the valve.
WARNING: WHEN CRANKING THE ENGINE TO
BLEED AIR FROM THE INJECTION PUMP, THE
ENGINE MAY START. PLACE THE TRANSMISSION
IN NEUTRAL OR PARK AND SET PARKING BRAKE
BEFORE ENGAGING THE STARTER MOTOR.
CAUTION: Do not engage the starter motor for
more than 30 seconds at a time. Allow 2 minutes
between cranking intervals.
(2) Crank the engine for 30 seconds at a time to
allow air trapped in the injection pump to vent out
the fuel injector drain tubes. Continue this procedure
until the engine starts. Observe the previous WARNING
and CAUTION.
(3) Tighten overflow valve.
HIGH-PRESSURE FUEL LINE BLEEDING
WARNING: THE INJECTION PUMP SUPPLIES HIGH-
-PRESSURE FUEL OF APPROXIMATELY 45,000 KPA
(6,526 PSI) TO EACH INDIVIDUAL INJECTOR
THROUGH THE HIGH-PRESSURE LINES. FUEL
UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE
THE SKIN AND CAUSE PERSONAL INJURY.
WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE
CLOTHING AND AVOID CONTACT WITH
FUEL SPRAY WHEN BLEEDING HIGH-PRESSURE
FUEL LINES.
WARNING: DO NOT BLEED AIR FROM THE FUEL
SYSTEM OF A HOT ENGINE. DO NOT ALLOW FUEL
TO SPRAY ONTO THE EXHAUST MANIFOLD WHEN
BLEEDING AIR FROM THE FUEL SYSTEM.
Bleed air from one injector at time.
(1) Loosen the high-pressure fuel line fitting at
the injector (Fig. 19).
(2) Crank the engine until all air has been bled
from the line. Do not operate the starter motor
for longer than 30 seconds. Wait 2 minutes
between cranking intervals.
(3) Start the engine and bleed one injector at a
time until the engine runs smoothly.

end quote.
pump timing is on next page
or tank filter line priming before. above.

Mar 22, 2016 | Jeep Cars & Trucks

3 Answers

Have a '99 GMC JIMMY. Everything has been replaced. Fuel pump, regulator, fuel pressure is good. Everything is turning over but not starting up. But will if you put starting fluid in it. Any ideas?


It sounds allot like a possible crankshaft or camshaft sensor most likely the camshaft sensor. If you can come up with any sort of scan tool or code reader see is there are any codes in the system. Or there is a problem with the security system possibly a bad key. Here is the cranks but won't run procedure from gm's service manual, ignore the parts about spark pligs wires and distributor those are obviously good if it will fire on starting fluid.
Engine Cranks But Does Not Run Refer to Engine Controls Schematics.
Circuit Description The diagnosis for an engine that cranks but does not run must have three elements present before proceeding with the diagnostic table. The following conditions must exist:
  • The battery must be adequately charged.
  • The engine cranking speed must be sufficient.
  • There must be an adequate amount of fuel in the fuel tank.
Diagnostic Aids If no trouble is found in the fuel pump circuit or the ignition system and the cause of an Engine Cranks But Will Not Run has not been found, check the following conditions:
  • Perform the Fuel Injector Solenoid Coil Test.
  • An after-market vehicle theft deterrent system could cause a start then stall or a no start condition.
  • Fouled spark plugs
  • An EGR valve stuck open
  • Water or foreign material in the fuel system
  • A grounded or intermittently grounded Ignition Control (IC) signal circuit
  • Restricted exhaust system. Refer to Restricted Exhaust System Check
  • Check the following ignition components:
    • Worn distributor cap
    • Worn distributor rotor
    • Check ignition wires by lightly spraying them with water in order to identify intermittent no starts
Check the following mechanical components:
  • Cylinder valve timing
  • Loose or broken timing chain
  • Low compression
  • Worn camshaft lobes
  • Bent or burned intake or exhaust valves
The VCM has integrated circuits that are fault protected; therefore, if a circuit has failed, the integrated circuit may not be damaged. If that is the case, the system will keep the circuit open until the condition has been corrected.
Afterwards, reinstall the VCM and check the circuit. Replace the VCM only if the circuit is still inoperative.
An intermittent may be caused by any of the following conditions:
  • A poor connection
  • Rubbed through wire insulation
  • A broken wire inside the insulation
Thoroughly check any circuitry that is suspected of causing the intermittent complaint. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.
If a repair is necessary, refer to Wiring Repairs or Connector Repairs in Wiring Systems.
Test Description The numbers below refer to the step numbers on the diagnostic tables.
  1. If the engine starts, the problem could be intermittent. Basic engine mechanical problems, the vehicle theft deterrent (VTD) system (if equipped), and poor connections could cause a no start condition.
  2. This step will determine if the cause of the no start or start and stall is related to the VTD.
  3. If the signal is over 2.5?volts, the engine may be in the clear flood mode which will cause starting problems.
  4. If the engine coolant sensor is below -30°C (?22°F), the VCM provides fuel for this extremely cold temperature which will severely flood the engine.
  5. Voltage at the spark plug is checked using the J 26792 spark plug tester tool. No spark indicates a basic ignition problem.
  6. This test will determine if there is fuel pressure at the fuel injection unit and holding steady.
  7. Use the J 34730-375 injector test lamp in order to test the injector circuits. A blinking lamp indicates that the VCM is controlling the injector.
Engine Cranks But Does Not Run Step
Action
Value(s)
Yes
No
1
Important: Before clearing the DTCs, use the scan tool Capture info. to save the Freeze Frame and the Failure Records for reference. The control module's data is deleted once the Clear Info function is used.
Did you perform the Powertrain On-Board Diagnostic (OBD) System Check?
-
Go to Step 2
Go to Powertrain On Board Diagnostic (OBD) System Check
2
Attempt to start the engine.
Does the engine start and continue to run?
-
Go to Symptoms
Go to Step 3
3
  1. Install a scan tool.
  2. Monitor the VTD Fuel Disabled parameter.
  3. Crank the engine.
Does the VTD Fuel Disabled parameter display active while you crank the engine?
-
Go to Diagnostic System Check - Theft Deterrent in Theft Deterrent
Go to Step 4
4
Monitor the TP sensor on the scan tool.
With the throttle closed, is the TP sensor more than the specified value?
2.5?V
Go to DTC P0121 Throttle Position (TP) Sensor Performance
Go to Step 5
5
Monitor the ECT sensor on the scan tool.
Is the ECT sensor below the specified value?
?30°C (?22°F)
Go to DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
Go to Step 6
6
Check for spark at two spark plug wires using the J 26792 spark tester.
Is spark present at both spark plug wires?
-
Go to Step 7
Go to Enhanced Ignition System Diagnosis
7
  1. Reconnect the spark plug wires.
  2. Turn OFF the ignition.
  3. Connect the J 34730-1A fuel pressure gauge.
  4. Turn ON the ignition leaving the engine OFF.
Is the fuel pressure within the specified range?
415-455 kPa (60-66?psi)
Go to Step 8
Go to Fuel System Diagnosis
8
  1. Disconnect the injector connector at the intake manifold.
  2. Install the J 34730-375 injector test lamp into each injector circuit one at a time.
  3. Crank the engine with the injector test lamp in each circuit.
Does the injector test lamp flash for each injector circuit?
-
Go to Diagnostic Aids
Go to Fuel Injector Circuit Diagnosis

Jul 16, 2015 | GMC Cars & Trucks

1 Answer

Spider injector replaced and no start


my thinking is when the engine backfired maybe one of the valves got bent and is now hitting a piston and keeping the engine from turning over or a rod may of gotten bent/broken. you could try taking all the spark plugs out than try rotating the engine backwards if it moves backwards try moving it forwards and see if it stops in the same spot if it dose than it is likely either a valve or the rod if you have something to look inside the engine throw the spark plug hole try to see if a valve is bent and try to see if all the pistons are all moving up and down the same amount. you may be able to tell if the pistons are moving by putting a rod throw the spark plug hole against the piston and trying to rotate the engine in either direction and see if the rod moves the same for all the pistons.

Jun 01, 2017 | 1999 GMC Suburban

1 Answer

Timing marks hyundai excell


What year, and what engine?

If it broke I wouldn't bother replacing it until I confirmed that the valves are NOT bent! Usually when the belt brakes on a Hyundai the piston will hit a valve or two and sometimes the valve will actually poke a hole in the piston.

Feb 18, 2012 | Cars & Trucks

1 Answer

Can anybody tell me how to change fuel injectors on 1989 audi 200 quattro?


first relief fuel pressure before disconnecting fuel lines remove fuel pump fuse or relay start engine let it idle until stall out lack fuel fuel now fuel pressure is reliefed. you have to remove top upper air cleaner housing, you have to remove whole entire air cleaning system because the fuel lines with fuel injectors is under the air cleaner filament you have to remove entire fuel line with fuel injector in order to replace fuel injector.

Nov 21, 2011 | Audi Cars & Trucks

1 Answer

Fuel injector. The car seems to drop a cylinder. I replaced the plugs and it ran well for about five minutes. It then started to miss again. I think number 3 injector is bad. How do I replace one injector.


FIRST YOU NEED TO RELIEVE FUEL SYSTEM PRESSURE BY REMOVING FUEL FILLER CAP THEN DISCONNECT FUEL PUMP HARNESS OR UNPLUG FUEL PUMP CIRCUIT RELAY, THEN START ENGINE LET IT IDLE UNTIL DIE LACK OF FUEL.TO REMOVE FUEL INJECTOR YOU NEED TO REMOVE FUEL DELIVERY PIPE WITH FUEL INJECTORS AS A ASSEMBLY TO REMOVE FUEL INJECTOR.YOU NEED TO TAG NUMBER ALL VACUUM HOSES AND PCV VALVE,NUMBER TAG FUEL INJECTORS WIRE CONNECTORS SO YOU CAN PUT EVERY THING BACK IN RIGHT PLACE.

Oct 14, 2011 | 1994 Toyota Corolla

1 Answer

What is needed for complete tune up?


  • Replace spark plugs

  • Replace rotor

  • Check distributor cap (replace if necessary)

  • Check timing (adjust if necessary)

  • Check ignition wires (replace if necessary)

  • Check ignition performance (firing voltage and ignition patterns)

  • Check idle speed (adjust if necessary)

  • Check choke (carbureted engines)

  • Clean fuel injectors

  • Check compression and/or power balance (identifies bad fuel injectors as well as compression problems)

  • Check manifold intake vacuum (reveals exhaust restrictions)

  • Check battery/charging voltage

  • Check exhaust emissions (verifies fuel mixture, ignition performance and emissions performance)

  • Check vehicle computer for trouble codes

  • Install new air filter

  • Replace fuel filter

  • Replace PCV valve

  • Check all emission controls (EGR valve, air pump, etc.)

  • Check all vital fluid levels (engine oil, transmission fluid, coolant, brakes, power steering)

  • Check belts and hoses

  • Check safety items such as lights, wipers, tires (including inflation pressure), horn, etc.

Jul 31, 2011 | 2000 Buick Park Avenue

2 Answers

1990 F150 302ci Fuel injection. Have to put starting fluid in to start it. Sloppy exceleration. Put inline filter, but didn't solve problem.


While not model specific- all EFI had a cold start system which involved an extra fuel injector (usually located in the intake manifold) a temp sensor and an air by-pass to give the extra fuel more air. Any failure in one component will make for hard starting. The temp sensor is usually the cheapest so just replace it. The fuel injector can be tested by removing it, hook it's wire and fuel source backon then put it in a container and spin the motor over to see if it is spraying fuel.(Engine cold)- Obvious safety precautions should be taken when working round flammable liquids.(and watch for the back flash if the engine lean pops.) The air by-pass can be seen to check if it's working. It should close slowly when the temp sensor reads heat. Hope this helps and a good repair manual wouldn't hurt either.

May 04, 2011 | 1990 Ford F150

1 Answer

Misfire on cylender 1 dealer says it is fuel injector 1, could be pluged up or need replaced. dont have money for dealer to fix. how hard is it to fix myself?


Actually not that hard, but it does require some tools. Normally you will find the fuel rail fastened down in some manner on top of the fuel injectors along that side of the engine. First step is to find the relief valve (looks like a tire valve), be warned that fuel will be under some pressure when you push this valve, do not do this on a hot or warm engine and put a rag around the valve to catch excess fuel.

Remove the fuel rail, then carefully unplug the wiring connector on the # 1 cylinder fuel injector. The injector should come out with a good firm tug, make sure that any O-ring has not been left inside the injector seating area. Place a single drop of oil on the new injector's O-ring and push it into place. Replace the electrical connector, then the fuel rail. Turn on the ignition, but do not start yet - check for any fuel leaks. If none, then start the engine and you should be good to go.

May 03, 2010 | 1999 Buick Regal

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