92 Civic DX Cranks but won't start
#1
92 Civic DX Cranks but won't start
I have a 1992 Civic DX that cranks over but won't start.
I am getting spark from the distributor coil but not from the plugs. I am not getting fuel and I do not hear the pump priming when I turn the Ignition into the ON position.
I tried shorting the #1 and #7 terminals on the fuel pump relay but did not hear the fuel pump prime. I tried shorting the #5 and #7 terminals and it did prime.
I tried cleaning and tightening G101 ground wire attached to the thermostat housing and I finally got it started. I let it run from a minute and shut it off. And now I cannot get it to start again.
I have tried cleaning the ground wire again and again but I cannot replicate what got it to start that one time.
Grateful for any advise.
I am getting spark from the distributor coil but not from the plugs. I am not getting fuel and I do not hear the pump priming when I turn the Ignition into the ON position.
I tried shorting the #1 and #7 terminals on the fuel pump relay but did not hear the fuel pump prime. I tried shorting the #5 and #7 terminals and it did prime.
I tried cleaning and tightening G101 ground wire attached to the thermostat housing and I finally got it started. I let it run from a minute and shut it off. And now I cannot get it to start again.
I have tried cleaning the ground wire again and again but I cannot replicate what got it to start that one time.
Grateful for any advise.
#5
Re: 92 Civic DX Cranks but won't start
Fuse 31 under the hood is getting power. I checked it with a test light by grounding the test light to the negative terminal on the battery and touching both metal receivers on top of the fuse.
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#8
Re: 92 Civic DX Cranks but won't start
Convince me you're testing the correct fuse (#31).
Draw a picture? Describe location in text? Post somebody else's picture of the same fuse box?
Draw a picture? Describe location in text? Post somebody else's picture of the same fuse box?
#12
Re: 92 Civic DX Cranks but won't start
Redo the two jump tests.
Refer to the diagram I posted for the correct main relay connector pin numbers.
#14
#19
#20
Re: 92 Civic DX Cranks but won't start
Plug the main relay connector back in.
Turn key to ON(II).
Does the CEL turn on for 2 seconds and then turn off? Does the fuel pump run for 2 seconds and then turn off?
Turn key to ON(II).
Does the CEL turn on for 2 seconds and then turn off? Does the fuel pump run for 2 seconds and then turn off?
#21
Re: 92 Civic DX Cranks but won't start
I must have performed the diagnostic incorrectly when I first did it. But now I feel confident that I am doing it right. When I jump terminal 1 to terminal 7 I hear the fuel pump prime. When I jump terminal 5 to terminal 7 I also hear the fuel pump prime.
#22
#24
Re: 92 Civic DX Cranks but won't start
Plug the main relay connector into the main relay, if unplugged.
Turn key OFF.
Unplug ECU connector A.
Turn key to ON(II).
Use a jumper wire to ground the Grn/Yel wire at pin A7 in ECU connector A to the metal frame under the dash.
Does the fuel pump run as long as pin A7 is grounded?
Turn key OFF.
Unplug ECU connector A.
Turn key to ON(II).
Use a jumper wire to ground the Grn/Yel wire at pin A7 in ECU connector A to the metal frame under the dash.
Does the fuel pump run as long as pin A7 is grounded?