Ignition problem or ?

[anders]

Hi!

Run the car for the first time after vinter.
Run great for 10-15 minutes the i stepped a little harder on trottle a few times,did gtreat but after third time it backfires and did not responce to trottle just backfires,had to run it on idle back to the garage.
t runs fine at idle but as soon ju give it a little trottle it starts to wobble and if you continue to give it more trottle it backfires by the exhaust.

Any suggestion?
I have change chip but it justgot worse.

Anders

 

[Lil Truck]

Have you checked all the IC hoses and vacuum lines? How is the fuel pressure and old fuel? Fuel filter ?

 

[turbo nasty]

Factory MAF?

 

[anders]

Fuelpressrr does not drop,added nex fuel yesterday,will chech IC clamps again
3.5 MAF. Translator + ver 6

 

[davelostmissing]

Check that the TPS is free and moves with the throttle

 

[Jerryl]

Back fire through exhaust: what's the O2 when it does?

 

[gs462]

Check grounds back of the head and also make sure the coil/module is tight on the intake.

 

[TurboBuRick]

X2 on the coupling check.

 

[anders]

Tps is ok
Are the coilpack grounded by the intake,it missing a bolt but still sitting tight

 

[earlbrown]

Sounds like you blew off your up pipe.

 

[anders]

Wires seemes ok,whats the up pipe ?

 

[87-WE2]

The pipe from inter cooler to throttle body.


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[Pronto]

Drain out the fuel and put some fresh fuel in. Don't want to go into boost with old fuel anyway.

 

[anders]

Pipe is ok,now it wont start at all,going to pull the plugs.
Thinking of MAF or coilpack failure

 

[anders]

No spark
How can i check that the ecm makes signal or how can i check the coilpack if possible.

 

[TurboBuRick]

Check for power at the module plug. Pink and black wires.

 

[anders]

Thanks
What voltare 12 ?

 

[TurboBuRick]

Yes 12v

 

[TurboBuRick]

Check it with the key on.

 

[anders]

Anyway to chech the ecm?