Pulled my car onto the street today. Let it site for about five hours. I then started it and it doesnt want to run. The idel is jumping up and down! From 800 to 1500 rpm. When I try to give it gas it pops. My air/fuel is also jumping around from 14.9 to 20. What the hell is going on! I havent really driven it after putting the new Kinetix Intake Manifold on. Any ideas?? I need to get this thing in the garage!

 

Now my service soon light is on.

 

Ok I pulled one plug and it has yellow powder on it, WTF!

 

actually this sounds like either a leak or something wrong w/ ur maf sensor. I remember when i had issues with my maf that i had the same symptoms..

 

fuel pressure? do you have a gauge?

 

might be vacuum leak, check around, it would be a big one! good luck

 

Another vote for the leak somewhere around the new manifold or an improper hose connection. The manifold pressure will be totally out of sync with what it should be based on MAF and/or throttle opening. The ECU will scramble trying to make sense of it all. Final result is very unpredictable, but will be whacked out for sure.

 

Ok I took four plugs out and they all had the yellow on them. I took a wire brush to them and put them back in. She started right up! So I guess its just the plugs. I checked a plug guide and it sayd yellow is high speed glazing. Is says to go one step colder. But Im already one step colder! Thanks guys for posting so fast! I was worried my car was going to get jacked tonight!