PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

I messed up...

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Old Aug 12, 2006 | 05:27 PM
  #1  
TravisH.'s Avatar
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From: Mukilteo, WA
Default I messed up...

Got my truck back today from the guy who installed my stall and we couldnt get it to idle after he disconnected the battery. I got home and Ive been playing with it for a little while, but now it wont even start unless I hold the throttle at about 25% . I used a tune off horist's site with a 222/222 cam in a 02 silvy to get my idle airflow stuff and now it wont even start unless the throttle is open... Truck is a 03 sierra with a tr220.

Anybody have any tips on getting this thing to fire up and idle?

oh and after it starts(with my foot on the gas) if I let off it dies.

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Old Aug 12, 2006 | 06:29 PM
  #2  
TAQuickness's Avatar
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From: Houston
Default

I'd start by putting your previous tune back in.

I'm not familair with the HPT calibration verbiage, but you will want to verify your AFR at idle, then dial in the RAF table.
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Old Aug 12, 2006 | 06:38 PM
  #3  
TravisH.'s Avatar
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From: Mukilteo, WA
Default

Ive got the RAF dialed, with the afr at around 15.0 (per wideband).

I just cant get it to fire up and stay running without me touching the throttle..

I tried putting in the old values, still being a little *****.
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