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P0172 code on 2003 Z06

B

Bradleywrench13

Guest
;help Hey Guys,

It's been awhile. I have had the "CHECK ENGINE" light come on 2 times on my Z in the last 2 weeks. The first time it went off before I could check for codes. It went on today and I came home and by using my SuperChips Max Tuner for my Envoy I was able to pull the P0172 code and cleared it. I then came on here and did a search which told me that it was a "Fuel trim system rich bank 1. I also learned how to access the diagnostics. I went back and ran the diagnostics on the DTC and the code did not come up even as a historic code. I looked at another website, and they had a bunch of diagnostics to try, but I do not have a Scan Tool. I was wondering if anyone has any experience with this??? The other website mentioned the PCV System and spark plugs this car only has 17000 miles on it, I can't see any of that being the problem. As usual I appreciate any and all assistance, and God Bless and Keep you all.
Steve
 

c4c5specialist

Technical Advisor
Joined
May 29, 2001
Messages
3,682
Location
New Haven, Ct. USA
Corvette
Nope, but someday.
HI there,
Fuel contamination, MAF sensor faults, a slow reacting o2 sensor on the drivers side, leaking fuel injectors can ALL cause a problem.
First thing I would do is change where you purchase your fuel and then add a 20 oz bottle of Techron to the tank.
This code takes a while to set, that is why you didnt see it when you rechecked your codes.
Sparkplugs, NO
PCV, possible, but not probable.
Allthebest,:bash
 
B

Bradleywrench13

Guest
HI there,
Fuel contamination, MAF sensor faults, a slow reacting o2 sensor on the drivers side, leaking fuel injectors can ALL cause a problem.
First thing I would do is change where you purchase your fuel and then add a 20 oz bottle of Techron to the tank.
This code takes a while to set, that is why you didnt see it when you rechecked your codes.
Sparkplugs, NO
PCV, possible, but not probable.
Allthebest,:bash
Thanks c4c5, I will try those things, especially the gas. I have been buying gas through the Post Exchange, but maybe there is a reason they are the cheapest????? God Bless,
Steve
 

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