1G 1G Bad ECU?

[justinfoushee]

Ok so I bought this 92 Eagle Talon TSI AWD. I bought it from the guy and it ran good. Then I got it home and its been a FULL year sitting trying to figure the problem out. When I go to start it, it starts for about 7 seconds consistently. And I have no throttle response or anything. I thought it was a boost leak but i checked that and it wasnt. I am getting fuel and spark. So i pulled the motor and rebuilt it. The rings were trashed and so were the bearings. My mods are a big 16g turbo, BC 272 cams, Full exhaust, FMIC, and GM MAFS and translator. I replaced the MAFS and it did the same thing. Any Ideas would help alot! Thanks!

 

[dawid4444]

video would be great

 

[justinfoushee]

Okay I'll get one up when I get back home to it!

 

[StewCrew]

Did you replace the spark plugs? Are they properly gapped? Also, when rebuilding the engine, did you time it correctly? It could also be bad gas, since it IS a 1g, you can try draining the gas out, there's a bolt on the bottom of the gas tank. Also try replacing the fuel filter. If you have a huge intake/ air leak, the car will do the same thing.

 

[j-90dsmtsi]

stewcrew i agree, also due to bad fuel could maybe be injectors

 

[TurboAnything]

Take out the ECU and snap some pics.

 

[luv2rallye]

When I go to start it, it starts for about 7 seconds consistently.

Check the fuel pressure & volume in the fuel rail before and after the 7 seconds. Perhaps the fuel filter is clogged, or the fuel pressure regulatior is leaking, or the fuel pump can't maintain pressure.

 

[g4ebguy90]

my experience with a bad ecu is, long cold start, low idle, check engine light for various sensors that were actually fine. Hot start, it would usually start right up and idle ok,