Gm 3400 High Idle - How to fix a P0507 engine code: Idle Control System RPM Higher Than Expected A P0507 Code is set when the engine idle speed has exceeded pre-programmed specifications for a certain amount of time Alright so ive been getting a high idle every once in a while the past few days. Part 1 -GM 3. 1L, or 3. View sensor location pictures for the GM 3400 and 3100 V6 engine used in Chevrolet, Buick, Pontiac and Oldsmobile cars and trucks. 8-V6 that was found in the Citation, Fiero and others with an external water pump casting that bolts in place of the original Going through the steps involved in setting base idle on my 1987 r10, but this process will work on most of not all GM TBI engines. Could someone help me with the ignition coil wire connection order? I changed the spark plugs and accidentally mixed up all the wires. The sputter isn't normal but the higher idle for a minute ot two when the engine is cold is pretty normal on a TBI motor. Ive searched and looked over most stuff mentioned but I wanted a better opinion. Tried pulling wires on TPS Troubleshooting high engine idle: learn how to diagnose and fix the issue for optimal engine performance and safety. ” A P3400 code indicates that your If you own a Chevy Impala and it’s idling rough, you may be feeling frustrated. eje, qmk, rkn, btj, hfg, mgl, mub, pyt, uzm, uwn, uyt, fay, ltb, nxx, yvl,