|
Other Car/Truck Brands Non-Corvette Content, Daily Drivers, Winter Beaters, Work Trucks, Tow Vehicles |
|
Share | Thread Tools | Search this Thread |
12-01-2009, 7:37pm | #1 | ||||||
Barn Stall Owner #25
Join Date: Oct 2009
Location: Lotta Rock, Arkansas
Posts: 8,204
Thanks: 1,517
Thanked 1,217 Times in 817 Posts
Gameroom Barn Bucks: $20496850
|
Anyone help me with this?
I have a 2002 Chevy 1500 Z71 5.3L Vortec powered pick up. I am getting a lean on right bank. I am thinking O2 sensor but I wonder how I can tell which one. I think it has two in front of the cat and one behind. These things are $70 bucks a pop. Any ideas? TIA.
|
||||||
12-01-2009, 8:06pm | #2 | ||||||
Administrator
Barn Stall Owner #7 Barn Raising I,II,IV NCM Supporter '13,'14
Join Date: Oct 2009
Location: Pewaukee,WI
Posts: 8,217
Thanks: 1,044
Thanked 5,025 Times in 2,238 Posts
Gameroom Barn Bucks: $30682687
|
First, check for any possible induction air leaks between the MAF sensor and throttle body.
If nothing found, the 02 sensor to suspect would be the front one on the right side (bank 2). The aft-cat 02 sensors only monitor for cat efficiency, they do not control fuel trims (which +25% trim sets off the lean codes). As a freebie test, you could swap the front 02 sensors side-to-side, and see if the problem follows the sensor or remains on the right bank. |
||||||
The Following User Says Thank You to Y2Kvert4me For This Useful Post: |
12-01-2009, 10:04pm | #3 | ||||||
Charter Member
Join Date: Oct 2009
Location: Va Beach
Posts: 448
Thanks: 16
Thanked 50 Times in 42 Posts
Gameroom Barn Bucks: $100431
|
The actual code number would help also.
__________________
50th Anniv. Quick Silver Z06 OBX LT's, Haltech Stinger P1SC waiting to go on |
||||||
12-01-2009, 10:08pm | #4 | ||||||
A Real Barner
Join Date: Nov 2009
Location: here there and everywhere
Posts: 1,619
Thanks: 498
Thanked 266 Times in 181 Posts
Gameroom Barn Bucks: $7813
|
|
||||||
12-01-2009, 10:21pm | #5 | ||||||
Barn Stall Owner #25
Join Date: Oct 2009
Location: Lotta Rock, Arkansas
Posts: 8,204
Thanks: 1,517
Thanked 1,217 Times in 817 Posts
Gameroom Barn Bucks: $20496850
|
Sorry fellows, I took it to AutoZone and got a PO171, I should have put that in my first post. I went out this evening to coach my son's basketball team and the SES light went off.
|
||||||
12-01-2009, 10:28pm | #6 | ||||||
Charter Member
Join Date: Oct 2009
Location: Va Beach
Posts: 448
Thanks: 16
Thanked 50 Times in 42 Posts
Gameroom Barn Bucks: $100431
|
Bank one sensor one. I would clean the MAF with electrical contact cleaner. CRC is the best IMHO. Make sure there are no vaccum leaks. Clear the code from the history and see if it comes back.
__________________
50th Anniv. Quick Silver Z06 OBX LT's, Haltech Stinger P1SC waiting to go on |
||||||
The Following User Says Thank You to 03SlowZ06 For This Useful Post: |
12-02-2009, 11:52am | #7 | ||||||
Charter Member
Join Date: Oct 2009
Location: Crow oregon
Posts: 501
Thanks: 181
Thanked 134 Times in 73 Posts
Gameroom Barn Bucks: $2194
|
Do you by chance have a K&N air filter? Sometimes the filter oil will stick on the MAF sensor wire causing dust bunnys to collect on the sensor hot wire. This can skew your sensor reading and cause a lean condition.
|
||||||
|
|
Support the Barn: |
Download the Mobile App; |
Follow us on Facebook: |
||