IAC Valve Question

[t93k2500]

Well see how this goes tomorrow.

 

[t93k2500]

Installed a new BWD (from Oreilly's) and what a world of difference. The truck now has the power I was expecting from the tbi mods. Idle is still high but I have yet to drive it as part of the relearn process from disconnecting the battery. On a side note, the AC Delco, and BWD part are absolutely identical; engraved numbers and all, makes me wonder why I paid $100 for what was supposed to be an oem part, instead of the $35 with my discount. Doesn't surprise me though. Will report back if idle returns to normal.

 

[95Escahoe]

Installed a new BWD (from Oreilly's) and what a world of difference. The truck now has the power I was expecting from the tbi mods. Idle is still high but I have yet to drive it as part of the relearn process from disconnecting the battery. On a side note, the AC Delco, and BWD part are absolutely identical; engraved numbers and all, makes me wonder why I paid $100 for what was supposed to be an oem part, instead of the $35 with my discount. Doesn't surprise me though. Will report back if idle returns to normal.

So you had an AC Delco one first? Cause I had a BWD one and replaced in with an AC Delco for the same reason lol, glad to hear it seems to be better

Sent from my HTC One X using Tapatalk

 

[t93k2500]

Truck idled fine on the 14 miles to and from work, yet had high warm idle during short delivery trips throughout the day. Going for a datalogging ride to see if I can discover anything.

 

[t93k2500]

Nothing unusual on the datalog. Idled fine, returned home and immediately restarted; high warm idle, as if nothing was remembered. Facking annoying.

 

[burkey05]

so did you do this?

Reinstall, key on with pins a & b jumped to set pintle for ecm reference. Key off, remove jumper, start vehicle and drive 40mph to reset idle. Idle is incorrect.

post #4 in this thread has more info on the IAC relearn procedure

http://67-72chevytrucks.com/vboard/showthread.php?t=415686

 

[t93k2500]

Thanks will try.

 

[grampadirt]

Which datalogging program do you use?

 

[t93k2500]

Tunerpro RT

 

[grampadirt]

Cool,the same one I use.

Couple of questions...does the TPS percent read ''0'' at idle? and is the actual idle close to the desired idle speed?