bad misfire t2 streetport help please!?!?!?!

[rotaryguy481]

I don't know what is going on with it the compression is good but it has a bad miss fire that I can't figure out at all from start then it dies and floods?????????

[12arotary]

stuck injector? fouled plugs? bad ground?

[rotaryguy481]

Would pre mixing to much oil clog the injectors

[RETed]

How much is too much?
Got pics of the plugs?


-Ted

[reaper]

agreed, pics of plug would help.

[rotaryguy481]

I will post some up tomorrow and they got a lot of black gunk on them pretty bad and its only got alil over 2000 miles on the motor

[Justen]

I would make a code reader if I were you. Turned out to be the best 5 bucks i ever spent.
I had a similar problem, just rebuilt my turboII motor, streetport... It started up but flooded and backfired like a bitch.

Mine threw a code saying there was a problem with my thermosensor (on the back of the water pump). When the sensors bad or the circuit is cut, the ecu dumps fuel into the motor as a "fail-safe" so you don't detonate, no matter what your temps actually are. I fixed that, and my car ran better than it did before the rebuild, streetport, and emissions removal... go figure :dunno:

It could be that, your throttle position sensor, bad injectors, or something else.
I can't pinpoint it, but a code-reader could definitely narrow down the possibilities for ya

[RETed]

Are these the original spark plugs you used on break-in?
If so, then a lot of the crap is from the blow-by from the engine breaking in.
I recommend swapping to a new set of plugs after the initial break-in period if the break-in plugs are no good.


-Ted

[rotaryguy481]

How do I make the code reader for it lol I think I know where to plug it in at but just incase where it be

[rotaryguy481]

Got the miss fire fixed to where it idles and revs but now its alil slugish and pops ocationally don't now what it be

[rotaryguy481]

How do I make a code reader for it