I just had an EBL flash board installed in my PCM....converted to speed density...and now the car runs like absolute ****...had the guy at Dynamic EFI confirm that it wasn't in my tune...confirmed that my mechanical (valve) timing wasn't off...and still it won't idle...backfires out the exhaust, runs like it has a horrible misfire (brand new plugs, wires, cap, and rotor button)...over fuels (smokes and smells like fuel...soaking the plugs after just a couple minutes of running...could just be from ignition misfire) and will not accelerate through the RPM range at all...bogs like the timing is extremely unadvanced...but the timing on the tuning software still says 22* at idle which is about normal...the O2 sensor readings are right at or around 500mv....injector PW is right about 4-6ms....map sensor readings are super high (like with a misfire or vacuum leak)I have also confirmed no vacuum leak with a brake clean test and vacuum gauge readings are unconsistent because of the crazy rough idle....TPS readings are normal (fluctuate with throttle position)....but the KS sensor readings are jacked even though its overfueling and obviously not causing detonation...anyone with any ideas please get back to me...I need to get her running!! thanks guys

 

Make sure that you have MAP sensor ground Pin (IRC PIN A) correctly grounded. MAP sensor should also be mounted with inlet port pointing downward - it is very common for MAP to be damaged by moisture. MAP sensor connector pinout with typical wire colors:
Pin A - Ground (Black)
Pin B - MAP Output (Light Green) to Pin C11 of ECM
Pin C - +5volt reference (Gray)

To verify that you have a bad MAP measure voltage between Pin A & B - normal idle voltage should be around 1.2 to 1.6V (16 to 18in-Hg).

//RF