let the positive off the battery last night, drove to work 12 miles but seems to still have a high idle.

Is there a way to make the PCM re learn the idle? I dont have hp tuners.

05 rcsb 4.8 5 speed

 

any aftermarket MAF sensor, the pcm has to be tuned for it or it will act funny. i could be wrong but honestly your stock MAF sensor is plenty unless you are running a huge procharger/turbo. even the TVS2300 guys run a stock MAF sensor. just my .02

 

Yea I know.

I paid 80.00 for it new.

Plus KB Racing turbo will be on its way 4/1/11

 

Let it idle for 5 mins warm without ever touching the gas. That's about all you can do. Then turn the A/C on and repeat.
Automatics, you put it in gear and put on the park brake and let it idle.

 

Left pos and neg off the battery all night last night.

I let it Idle for 8 to 10 minutes and cycled the AC on and off every couple minutes. She seems fine.

Only problem is driving into work if I shift to neutral and cost to a stop it will rev to 2,000 sometimes which is really annoying.

Should I just get the mail order nelson tune from nelson to clear it up.>?

 

I thought the MAF was only used at certain times and the O2 sensors were used the rest of the time?

 

put the stock mass air back on and most of your problems should go away. the one you bought is junk anyway.

 

The MAF is constantly in use, and the O2 sensors are also constantly in use once the engine comes into temp for closed loop operation.

 

There is a relearn procedure that doesn't require tuning software, but I can't recall what it is. I usually just drive it like I stole it for a while and the idle relearns itself and clears up.

As mentioned above, I'd throw the Granatelli up on ebay, as they've been known to cause more problems than their worth, such as lean codes and irratic sensor readings

 

Yea the granatelli is on ebay, screw that thing.


Plus when I get the KB racing Turbo on, I am just going to get rid of the MAF anyways!! Truck runs run now by the way.

Stupid thing.