Ok I got the car back together, (check sig for specs) the car starts and falls right on it's face, (floods out). I listened to a fellow forum member when I installed the wiring harness and now I am questioning the advice. The car starts up but floods about 3 seconds later. I think I may have the connectors to the injectors mixed up. Can someone please verify the injector connector locations? I currently have one connector from each branch on 1 secondary and one primary. Is this correct? Or does each branch service 1 set of injectors either primary or 2ndary? HELP!!

Thanks

trevor

 

Ok well the haynes show the injector connectors coming from the front of the engine for the 2ndaries on the N/A cars... Any ideas here? Would the turbo be different?

 

Im not sure of the answer but why dont you just mix them up until you get it to idle strong?

 

thats bad advice



rrtec, one 'branch' goes to both primaries on both rotors, the othe branch goes to the secondaries

 

I was also trying to figure out the injectors clips too... but I am in a different situation. N/A harness with 13BT engine - both S4 of course.

 

Yeah I am s5 engine (4 port) with s5 t2 ecu/wiring harness and s5 N/A manifolds..... whew..

 

i think i participated in that thread. The problem I am having is cold start issues, it was doing the exact same thing -- it would crank, and then stall out. Now i have to blip the throttle until its a little warm, and then it runs ok (minus other issues I am having; that being I have an air leak, which i think is the culprit of my cold start issues).

the way mine is wired, is the first branch (one short wire and one long wire) to primary(short wire), then secondary (long wire) on the #1 rotor, and the other branch the same for the #2 rotor. I believe HAILERS advice in that thread was right. Have you performed the TB mod? Check for air leaks? AFM connected? I know these are dumb questions, but start from there. It could just be an air leak, like the problem I am having.

 

Of course the AFM is connected, air leaks are hard to diagnose without the engine "running".. The TB mod was done... (but not by me)..

I am going to swap the injector clips around and see what happens.. it seems like it fires up then chokes itself out with fuel, then If I continue to crank it it will start the cycle over.. Like it's getting too much fuel (especially when I hit the gas)...

 

I know what kungforoy is talking about. I fixed mine and am pretty sure my injector clips are connected to the correct injectors. It's hard to explain without pics... my FSM helped out quite a bit. I guess you and I are in the same boat now though. We gotta get these things running!

 

This is true. However I have seen an ad hoc tester, where u pressurize everything from the AFM back, and spray soapy water on the intake parts and wherever there are bubbles is where air is leaking. There is a post floating around. I have pics of it and may help locate the air leaks. On the TB mod, is it JB welded shut? Or did they use plugs? When I performed the TB mod I used plugs, and I think this is where the air is leaking for me. Pics of the pressure "tester" (if you have access to a compressor).

 

rrtec, i think im mistaken. when i did my harness, i did it the way i described above. i dont remember how stock looks for turbo versions.


can you do a colour code trace on the wires themselves?

 

he has different injector clip wires (i think he had to rewire them) so thats a no go.

 

i know this sounds weird but are you sure your fpr is good, cause its possible that the fpr doesn't release pressure and all that fuel is dumped into the engine and flooding it, i had a similar problem, but mine just popped 2-3 times and never actually started

just trying to help
Dennis

 

Well the funny thing is the car was running before I pulled the Standalone out so I am pretty sure all the mechanics are still good...

Seems like fuel related. But I did buy used AFM, ECU, and harness..

 

Quick question, I had the yellow fuel pump plug jumpered, would this cause too much fuel??

 

I also am going to re-ground the injector/ecu grounds that may be a problem too..

 

lol... that may be your problem. I used a jumper wire to prime my fuel system, but not to start it.

 

Anyone know if this for sure would cause issues before I tear this back down?

 

i had the same problem just recently. it ended up being my injector wiring. what i did was turn the ignition on and then spin the CAS then use a stethascope to see what injectors are firing.

for me it was the 2 shorts to the primaries and the 2 long connectors to the secondaries.

 

Hmm, is your car a turbo or n/a?

 

I may take the afternoon off to screw with this.

 

Fixed it, was a bad ECU harness.