san7

Ok looking for some help here. 87 TII w/ s5 motor/ turbo. Died at a stoplight and when re-started had fire coming out the exhaust. When I tried to restart it later it just pumps fuel like a cloud out the tailpipes and barely runs. Compression is 107-110 across the board, and has great pressure sounds with the plugs out. Pulled and had the primary injectors cleaned, secondaries are new greddy 720's, rtek 1.7 ecu brand new, just got it back. New fuel filter, fuel lines, plugs, fuel pressure regulator, new pulsation dampner. No vacume leaks, checked everything.
I think it has spark, I can see spark when I crank it with the plugs out. I tried to unflood it, and even cranked it with the plugs out. Nothin, just does the cloud of death again. I swear, light a match and the neighborhood would go up. These things make great fuel atomisers!
Please point me to some more things to check. Thanks

homebrewer

I'd pull and send in all of your injectors to shop to ensure none of them leak. That may not sound like the best advice but I'm kinda stumped too.

BTW, you can think of the extra gas in exhaust as fuel for an afterburner. Need to run a sparkplug to each exhaust so it can light off that fuel. Who knows, it might make your car faster :-) Good luck and if you figure it out, please share it with us so we may all learn from your experience. Take care.

san7

The injectors have just been cleaned. I pulled them thinking that was the problem and sent them to witchhunter. While they were out I decided to get the rtek 1.7 and the 720cc greddy injectors. Now today, I floored the car to activate the anti-flood feature of the rtek and the thing still started and sputtered with the accellerator to the floor. It sure does seem like an injector is spewing, but man they just got cleaned. Maybe I will swap the primaries for the other two I had cleaned (sent all 4 stockers out) and try it again. Checked the resistor pack also and they are al fine. Could it be coils or ignitors?? I saw spark while cranking the motor but I do not know how to check the ignitors.
Does anybody know how the rtek senses that the pedal is floored, is it just through the TPS?

RETed

How long did you wait before you installed them after they have been cleaned?


-Ted

san7

They were installed about a week after I got them back. I haven't tried the other pair of injectors yet, but I will after work. It sure seems like a frozen injector, but I am starring at the sheet from witchhunter and he said they all looked good. Would spark issues let that much fuel out the exhaust??

san7

Today I took off the intercooler and upper manifold, shorted the yellow plug to run the fuel pump and have no signs of a leaky/stuck injector. Checked the injector relay pack and its ok. The only code I am throwing is TPS, which is on order. From my understanding the car will still run without. Any help???????