Hi All, I am currently a student at WyoTech, and during my last class(fuel management systems) i clean the throttle body on my car. After I did that, i found a surging problem when coasting to a stop (6- spd manual). I have followed the diagonostioc tree that Alldata, and Shop Key respectively have given me, i refuse to condemmn my ECM till i have done everything under the sun. I have used a Modis in global and specific mode, i have looked at freeze frame data, live data strems, i have check the voltage and resistance of the MAF, the TPS, and the ect, all were within in manu specs. The maf cofused me though, from the ecm i was getting a voltage reading on 1.4 (spec is 1.1-1.5v at idle), but on a dvom it was reading 2.8-3.1v. I have checked and re-checked the grounds for the ecm, tps, ect, and maf, i do have aftermarket intake, but the car was running fine before the throttle body cleaning. If anyone can give me any more ideas, please, i am trying hard to understand this. I have been tearing my hair out. Thank you for taking the time to read this. PS the surging happens comin off the freeway, in town when the car is warmed up.
Chad