|
| Search | Car Forums | Gallery | Articles | Helper | Air Dried Beef Dog Food | IgorSushko.com | Corporate |
|
#2
02-06-2007, 09:53 AM
|
||||
|
||||
|
Re: Code PO172
DTC P0172 indicates the system is in a rich trim mode. Ideal fuel trim = zero. Greater than zero indicates the PCM is adding fuel to compensate for a lean condition (P0171). If fuel trim is less than zero the PCM is reducing the amount of fuel to compensate for a rich condition.
Here are possible causes: Check all vacuum hoses at intake system. PCV Valve Possible throttle body blockage (clean input screen and body) IAC (idle air controller valve) Check fuel injectors (bad o-ring seal) MAF sensor EGR valve Check 02 sensor (before CAT)
__________________
'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines 
|
|
 |
POST REPLY TO THIS THREAD |
 |
|
|
