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  #1  
Old 02-05-2008, 11:18 AM
venturenot venturenot is offline
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Error code P0172

Check engine light came on and I got the error code p0172. Any ideas where to start.
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Old 02-05-2008, 11:26 AM
91talondsm 91talondsm is offline
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Re: Error code P0172

what kind of car
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550cc's,walbro 255fp,stock 14b at 15psi,palm m130 with mmcd logging software,2 1/2in. down pipe to 3in. exhaust, high flow cat.,2g maf with k&n,custom intake,aftermarket boost guage,mbc,6 bolt with 160 compression. in closet:b16ge3 turbo,rochester 680cc inj.

wish list:wideband,headers,1000cc,e85 conversion,dsm link or map,fmic,20g,272 cams,arp head studs,2600 clutch,lsd,keydriver,. 13sec. daily driver goals.
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Old 02-05-2008, 11:39 AM
91talondsm 91talondsm is offline
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Re: Error code P0172

Quote:
Originally Posted by 91talondsm
what kind of car
P0172 indicates that the PCM reached it's correction limit and can't take away any more fuel in order to make the car run properly. It's likely a fuel system problem, so starting with a fuel pressure test and a fuel injector leak down test to see if any of the injectors are leaking. That would also be a good time to check the fuel pressure regulator for any kind of internal fuel leak past the diaphragm.
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550cc's,walbro 255fp,stock 14b at 15psi,palm m130 with mmcd logging software,2 1/2in. down pipe to 3in. exhaust, high flow cat.,2g maf with k&n,custom intake,aftermarket boost guage,mbc,6 bolt with 160 compression. in closet:b16ge3 turbo,rochester 680cc inj.

wish list:wideband,headers,1000cc,e85 conversion,dsm link or map,fmic,20g,272 cams,arp head studs,2600 clutch,lsd,keydriver,. 13sec. daily driver goals.
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Old 02-05-2008, 01:04 PM
venturenot venturenot is offline
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Re: Error code P0172

It is a 1998 Chevy venture.
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Old 02-06-2008, 12:19 PM
venturenot venturenot is offline
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Re: Error code P0172

I checked the air filter, it was not too bad but replaced it anyway. In replacing it I noticed that the housing was not properly seated. Perhaps this leak was restricting airflow? After I did this the check engine light stopped illuminating and the DTC changed to a pending DTC. After a few starts it was then saved in Freeze Frame. I cleared the code and now have no codes or pending codes. There were a few monitors not reporting and I guess I will see after it completes the drive cylce (whatever that involves) if everything is OK. IF it comes back on I will look to the fuel system. Thanks much, I appreciate your input.

Last edited by venturenot; 02-06-2008 at 04:38 PM.
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