hey guys, don't like to cross post but my thread isn't getting any more response over in tuning and i thought there might be a few people who don't look there much.

codes are;

P0102- maf - replaced maf - still have code - have battery voltage on pink wire, 5v on signal wire- continuity on ground- 2300- 2500 hz @ idle - 5v on iat signal - continuity on ground - no intake leaks that i can find

P0443 - purge solenoid - replaced solenoid - still have code - have power at plug.

P0449 - vent solenoid - have not replaced

all evap lines are sound, no leaks that i can find, canister seems intact, replaced gas cap,

anyone know of a relationship between these three codes ? i was thinking vacuum leak but i can't find any ?

i have 19 lbs vacuum per my boost gauge [ whipple compressor, 8.1 marine inj's, nelson tune, 5psi pulley on right now] develops full boost pressure.

truck seems to idle fine, runs good, had some trans jerks when it coded the first time [ all three codes at the same time] no additional codes set.

any ideas are welcome, after i pull the vent solenoid and check it out my next option is the dealer since i'm about out of things to check.

thanks, e

 

got it, see solution here

https://www.performancetrucks.net/fo...d.php?t=415733