Thanks for reading this thread..
Okay i have a 350 tpi running on SD set up 1999..
I have changed many parts to fix this but giving up hope...
The engine will run and idle (sometimes) a bit rich as you can smell it and see smoke.

The engine will warm up and either run but mostly it will then die just like you turned the keyoff...Then trying to start will just end up in wet plugs..
If the engine does run once you shut it down and leave it over night it will not start the following day it will just turn over then just flood itself silly...

Parts i have changed include...new ecm,tps, iac,temp sensor,dizzy, pick up coil,leads,plugs,oil,o2,fuel,fuel regulator...I have checked vaccuum, all wires, grounds,power and clean throttlebody, i even sprinkled some magic dust over the engine..

I have looked and injectors and pressurized the rail whilst the injectors were out and they dont seem to be leaking but im no mechanic...

What do you guys think please help me im struggling and have tried so hard.

Im wondering about faulty injectors?(but all 8???not sure)maybe the Memcal,
maybe the canoodle valve is broken....only kidding..

 

did you check injectors,test them

 

Hi i did check the impedance of each one all at 17ohm if i remember...
Also i placed test light on the input and can see a pulsed supply when engine is cranking..I am seriously concidering getting them replaced or cleaned for piece of mind that its a fix or to rule them out..

 

Does the TPI computer use coolant temperature in closed loop?

 

I have not changed anything in ecm and i hae replaced the Coolant temp sensor ... i amnot sure if it uses it sorry..i

 

are the injectors the correct flow rating? fuel pressure test? do you have the correct prom? sounds like its just pumping too much fuel in

 

I think your right...i have no idea what size the injectors are or if there working 100% also i have no idea about prom so i have just ordered new injectors and a programed prom to match my setup from http://www.scotthansen.net/ he is very helpful and knows his stuff i will let you know how it goes once i recieve delivery over the big pond....

 

Injectors:

Look on the actual body of the injectors themselves and find the part number, then write it down and google it.

Plug wires:

What kind and do they have any burn marks on them? I used to burn through plug wires all the time when they hit the manifold. All it takes is a tiny crack and you will get a bad miss that will drive you crazy.

Timing:

Is your timing set correctly? If you swapped the dizzy and installed it 180 degrees out its never going to run correctly no matter how many parts you replace.

IMHO it sounds like its ignition related, (without actually seeing the car)

 

My car was flooding the injectors and doing basically the same thing. Replaced the injectors, runs great!

 

The plug wires are new and have checked timing an had it running..
Waiting in new plugs Jeze8 so hopefully like yours it will run great yet again.