S4-on-your-back-door

I think that this maybe my problem with the 1155 cel reading ( c my post 1155). Ive changed the wiring harness,Ive swapped out the injector with another one, and changed out the o2 sensor and she still blows out white cloude of unburned fuel and runs like its missing before she dies. Also Ive changed the plugs,wires,caps,and rotors, and yes both rotors turn at the same time.

S4-on-your-back-door

-took it to the dealer and they"r scared to work on it because it has a SC kit on it. need to put my ECM in someone's 95 993 to c if thats my problem. Can anyone help?

TRINITONY

Try Taylor at ASG...

CarreraX

If your car is an early 95 you can send it to me and Ill see if it works in mine an dsend it back the same day.

S4-on-your-back-door

Thks for the replies, wats Taylor at ASG # does he have ECUs? THKS a bunch for the offer Carrerax, but Im thinking thats my problem. I put an node lite on all injectors and number three injector lit up like a X-MASS tree. As soon as i turned the ignition switch on it comes on and stays on. All other injector operate as norm. I checked my oil and its full of gas, hope i didnt wash down cylinder 3.I dont know why the CEL keeps saying its #5 injector as its clearly #3. will keep u all posted as i proceed. Dam glad the the stealers were to scares to work on it and i doent know why they couldnt do wat i just did being that they are the trained pro that work on these car all day long. Hell Im not even a shade tree mec.and it took me no time to find.

TRINITONY

703 876 6281

S4-on-your-back-door

thnks and your car looks SWEEEEETTT as my son would say Tmorrow I will test the harness at the ECU and see if its sending 12v on pin 5 if so than the ECU is the problem. I may if its not to difficult remove the wire and check that pin and the wire separately, that way Ill know if its being back-fed from something else or if its actually the ECU sending the constant 12v.

S4-on-your-back-door

TRINITONY looking at your Avatar it looks like my car you are parked next on the left at the Rockvile meet lol

Lorenfb

"if its actually the ECU sending the constant 12v."

Actually, the DME ECM provides a ground and not a 12 volt signal.
There's a likely chance that the injector wire for that cylinder is
grounded somewhere. We've had Porsche shops assume a bad
DME ECM, when the real problem was a bad wiring harness.
Unless an injector winding became shorted, it's unlikely that the
the DME ECM is the source of the grounding problem.

S4-on-your-back-door

so r u saying it is the DME? Ive changed the injector harness (engine wiring harness and mine was deteriorating) and the injectors so im thinking that the problem is the DME. the node lite stays on and is VERY BRITE compared to the other injectors when they are triggered. When i say brite i meen flash lite brite.

S4-on-your-back-door

also would u have a DME or be able to repair one if that is my problem? thks

S4-on-your-back-door

Well went out this morning and removed the drivers seat and the DME. Traced out wire #5 (injector 3's ground ) pulled some slack and pluged the connector back in. Turned on the ignition switch and the injector again lites up like a XMASS tree, I cut the wire and sure enought the node lite goes out. That is telling me that the DME when turned on is grounding that injector. I will be soldering and shrink tubing the wire back together and looking for someone who can repair or replace my DME

S4-on-your-back-door

anyone know who can repair my ECU?

Colin 90 C2

I just bought a used one off ebay for a project.
Lorenfb's shop does repairs, also Otto's Venice, and Vertex sells reman'd units.
Just pick up a Pano or Excellence magazine and look thru the ads.

S4-on-your-back-door

thks. by the way how much did u pick yours up for if you dont mind saying.