Im getting a really lopey idle rich, rough and shakey. plug wires plugs ignition is all new. Im guesing its maf or tps sensor. how could i tell whats causing this idle.

How do i test the tps maf and map??


thanks

 

Anyone? its the setup in my sig it blows blue smoke and doesnt idle good at all. It smooths out when i rev it up but down low it just loads it up with fuel. I tested the maf and it has 1.34v at idle and goes up when i rev it so i assume its working. It also seems to run richer when the Maf is hooked up wich is weird i would think it would richen more without it. Any input would help.

Thanks

 

Blue smoke = burned oil. This can be caused by bad valve seals or rings. The tune you have should idle fine. Did you set the valve lash correctly?

 

Ok .. hmm The engine is newly rebuilt. I guess upon initial start up some oil smoke is normal because it stopped now. It actualy looks like a little black smoke now. I have bought every sensor new and it seems to run better after i replaced the maf. however it still doesnt want to restart after it gets warm and shakes a little more than it should. Im goining to readjust the rockers and try again. They are proforms so i believe it just a 1/4 turn past zero lash. Thats how i set them before. so i guess my only 2 probs now are rich cold start ups and hard warm starts. Any other suggestions?

 

i think either rockers or firing order