|
|
|
p0171 and p0101 2004 Chevy Silverado
|
|
|
| |
|
|
azurite2005
Novice
Jul 12, 2021, 3:46 PM
Post #1 of 2
(1757 views)
|
|
p0171 and p0101 2004 Chevy Silverado
|
Sign In
|
|
Hi.
2004 Chevy Silverado 4.8L 200K miles
I could use some guidance on how to troubleshoot two engine codes that my truck has. P0101 and P0171. I erased the codes, unfortunately. This is what I have done thus far:
-Inspected the Air filter (it is clean)
- Cleaned the MAF sensor with MAF cleaner.
- Took live readings with my Zurich ZR8 code reader
The LTFT1 and LTFT2 hover around +18% when engine warm and idling around 600 RPM.
- The MAF values are responsive to changes in engine RPM.
I don't have any special tools to check for vacuum leaks.
What are my next steps?
(This post was edited by azurite2005 on Jul 12, 2021, 4:17 PM)
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Jul 12, 2021, 4:41 PM
Post #2 of 2
(1741 views)
|
|
Re: p0171 and p0101 2004 Chevy Silverado
|
Sign In
|
|
You have a lean code and a MAF code. My guess is there is something wrong with either the MAF or the snorkel is sucking air somewhere between the sensor and the throttle body.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 