no start no code
07-01-2018, 07:28 PM
#1
no start no code
car died, no code, no start replaced opti and coil wire, the connector destroyed by bad connection.
no start no code, coil driver module failed test in book, still no code, I unplug stuff still NO CODE.
Anyone know about this stuff, could it be bad ecu?
Help Please
no start no code, coil driver module failed test in book, still no code, I unplug stuff still NO CODE.
Anyone know about this stuff, could it be bad ecu?
Help Please
07-02-2018, 07:55 AM
#2
Drifting
it would help to know the year ..do you have fuel pressure??
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etcarl (07-02-2018)
07-03-2018, 07:12 AM
#4
Le Mans Master
Member Since: Oct 2004
Location: South-central Missouri
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Fuel-Air-Spark
Spark? If not WHY not? No signal from ECU, then check FSM and verify it "sees" what it needs from its sensors (e.g., MAP/MAF, TPS, etc.)
Wet fuel on spark plug(s)? Pressure is a good thing. Have you a NOID light? I.e., are the injectors firing? If not WHY not? connector(s) all good?
If you had a scanner, or a code reader at least, life would be good. (Perhaps for another time, unless you can get an OBD-1 unit w/ the proper programming/card/module.
Spark? If not WHY not? No signal from ECU, then check FSM and verify it "sees" what it needs from its sensors (e.g., MAP/MAF, TPS, etc.)
Wet fuel on spark plug(s)? Pressure is a good thing. Have you a NOID light? I.e., are the injectors firing? If not WHY not? connector(s) all good?
If you had a scanner, or a code reader at least, life would be good. (Perhaps for another time, unless you can get an OBD-1 unit w/ the proper programming/card/module.
07-03-2018, 08:58 AM
#5
Safety Car
How much mileage on car? Battery new? Sounds like electrical. Start with basic connections ,corrosion,grounds, Whats car history? Forget codes they never help to point you in the right direction. Get a FSM book that will point you in the right direction
07-06-2018, 03:41 PM
#6
Le Mans Master
This sounds all wrong.
What method did you use to measure the pressure?
The 2 second prime should give you about 35 psi after shut down and about 38 running at idle.
Either your gauge is measuring wrong or the FPR is clogged and restricting flow back to the tank. You can check the return at the tank. (Not even sure these pumps can produce 50 psi).
Did you ever at any time measure for spark either at a plug or at the coil while cranking?
A 92 has a ECM, ICM, opti and coil. These items work to produce the pulses and spark for the plugs. There is no ECU as the earlier cars.
You are way down on the check list of making tests and knowing what direction to go in. You have to find out the basics first and if no spark then test for pulses out of the ECM.
You probably will not have any codes and as said will not help as far as I see at this point.
Why did you replace the opti? If the connector for it was bad was it replaced and if not is it making connection now?
What method did you use to measure the pressure?
The 2 second prime should give you about 35 psi after shut down and about 38 running at idle.
Either your gauge is measuring wrong or the FPR is clogged and restricting flow back to the tank. You can check the return at the tank. (Not even sure these pumps can produce 50 psi).
Did you ever at any time measure for spark either at a plug or at the coil while cranking?
A 92 has a ECM, ICM, opti and coil. These items work to produce the pulses and spark for the plugs. There is no ECU as the earlier cars.
You are way down on the check list of making tests and knowing what direction to go in. You have to find out the basics first and if no spark then test for pulses out of the ECM.
You probably will not have any codes and as said will not help as far as I see at this point.
Why did you replace the opti? If the connector for it was bad was it replaced and if not is it making connection now?
