2002 Suburban Troubleshooting help
March 23rd, 2013, 11:49 AM
#1
CF Beginner
Thread Starter
Join Date: Mar 2013
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
2002 Suburban Troubleshooting help
Can anyone help? Thanks.
2002 K1500 Chevy Suburban, 5.3 Liter Flex Fuel, 193,500 miles, just replaced
plugs and wires.
Cold start, runs rough, tripped codes P0171 (2 - one for bank 1, one for sensor
Bank A) and P0174 (also 2 - one or bank 2, one for sensor bank B). Runs great
once fully warmed up.
Intake manifold pressure bounces round 11- 12 and goes to 10 steady once warmed
up
2002 K1500 Chevy Suburban, 5.3 Liter Flex Fuel, 193,500 miles, just replaced
plugs and wires.
Cold start, runs rough, tripped codes P0171 (2 - one for bank 1, one for sensor
Bank A) and P0174 (also 2 - one or bank 2, one for sensor bank B). Runs great
once fully warmed up.
Intake manifold pressure bounces round 11- 12 and goes to 10 steady once warmed
up
March 24th, 2013, 11:04 AM
#2
CF Active Member
Join Date: Feb 2013
Posts: 215
Likes: 0
Received 0 Likes
on
0 Posts
You may want to check the air filter. The MAF sensor may be dirty, as a result of the air filter being clogged. Are you running a K&N filter that uses oil. It is possible that you have put too much oil on the filter. Is this is the case, get a K&N cleaner kit and clean the filter and re-oil conservatively. You should also try and clean the MAF sensor or look at replacing it.
You are doing well with 193,000 miles on truck.
You are doing well with 193,000 miles on truck.
Last edited by mulmur1; March 24th, 2013 at 11:06 AM.
Thread
Thread Starter
Forum
Replies
Last Post
taderhold
Silverado & Fullsize Pick-ups
2
June 7th, 2010 8:13 AM
taderhold
Silverado & Fullsize Pick-ups
1
March 22nd, 2010 3:32 PM
