Way Too Much Gas On Start
#1
Hey guys, I'm having a really hard time getting my car up and running. Just a little background. It's a 1988 Turbo II with a rebuilt engine (new rotor housings and compression is good). I had the car running at one point. It was a little stubborn to start, but it would catch after a few rotations and then idle fine.
For the last few weeks it won't start at all. The really scarry thing is that if I crank it a few times (no more than 20-30 seconds total) there will be gas dripping from the turbo area (and the spark plugs are dripping too when removed). I have a cut off switch for the fuel pump in the car, so I can turn the pump on and off while cranking (I'll crank with the pump on for a few seconds and then turn it off if it doesn't catch right away). The tach does bounce and I've confirmed that there is current in the plug wires with a timing light. It does sort of cough and hiccup like its trying to catch, and there is a little exhaust smoke coming out of the tail pipe. It seems like there is way too much gas being injected. I've done the extended unflood (pull plugs and crank), but the engine just fills right up again. I pulled the UIM and jumpered the fuel pump relay and there doesn't seem to be a leaky injector (no fuel smell from intake runners). The BAC, BAC solenoid, and Air Supply Valve are still hooked up and seem to be working OK. One strange thing is that I get a ECU error code 6 while cranking. It looks like this is an error for the TPS. The error only comes up while cranking. If I turn the ign. to ON, no errors come up and I have verified the the TPS is set up correctly (with the two light method). Does the ECU look for the TPS while cranking? I know the system defaults to WOT if it doesn't see the TPS. Any other ideas or input? Thanks
For the last few weeks it won't start at all. The really scarry thing is that if I crank it a few times (no more than 20-30 seconds total) there will be gas dripping from the turbo area (and the spark plugs are dripping too when removed). I have a cut off switch for the fuel pump in the car, so I can turn the pump on and off while cranking (I'll crank with the pump on for a few seconds and then turn it off if it doesn't catch right away). The tach does bounce and I've confirmed that there is current in the plug wires with a timing light. It does sort of cough and hiccup like its trying to catch, and there is a little exhaust smoke coming out of the tail pipe. It seems like there is way too much gas being injected. I've done the extended unflood (pull plugs and crank), but the engine just fills right up again. I pulled the UIM and jumpered the fuel pump relay and there doesn't seem to be a leaky injector (no fuel smell from intake runners). The BAC, BAC solenoid, and Air Supply Valve are still hooked up and seem to be working OK. One strange thing is that I get a ECU error code 6 while cranking. It looks like this is an error for the TPS. The error only comes up while cranking. If I turn the ign. to ON, no errors come up and I have verified the the TPS is set up correctly (with the two light method). Does the ECU look for the TPS while cranking? I know the system defaults to WOT if it doesn't see the TPS. Any other ideas or input? Thanks
#4
Sounds to me like you've just flooded the **** out of it.
Do the severe unflood procedure, add a dab of oil, revolve by hand several times, clean/new plugs, and keep it WOT from when you start cranking until it fires off.
I had an S4 TII engine that was right on the edge of flooding on every hot start and keeping my foot to the firewall from the get-go would get it started 90% of the time.
Since I believe flooding to be primarily a compression issue, I think once your fresh engine's comp comes up it will be much easier to start.
Best of luck
Do the severe unflood procedure, add a dab of oil, revolve by hand several times, clean/new plugs, and keep it WOT from when you start cranking until it fires off.
I had an S4 TII engine that was right on the edge of flooding on every hot start and keeping my foot to the firewall from the get-go would get it started 90% of the time.
Since I believe flooding to be primarily a compression issue, I think once your fresh engine's comp comes up it will be much easier to start.
Best of luck
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