Try this....

ON scan tool place these PIDS on screen. MAF g/s - RPM. TPS V and MAF V B1S1 and B2S1 (MV)

graph them go for a drive at WOT the TPS should read over 4.5V MAF gs should follow with RPM and look in unison.

Here is the key, at WOT if PCM sees t... Login to read more.