code 56 any help please92 SSEI SUPER CHARGE
did check , sun pro scaner Corrosivity/add coolant or port throttle system vacum sensor problems or quad driver B fault . but cann't find any info in my haynes repair mam... for last to items
Code 56 means you have a problem with the wiring to or the device itself:
1. Boost control solenoid
2. EGR
3. Transaxle or TCC
Does the SES light stay on at all times, or just when decellerating?
1. Boost control solenoid
2. EGR
3. Transaxle or TCC
Does the SES light stay on at all times, or just when decellerating?
check engine light comes on decellerating.Does not stay on. where did u come up w/ that diagnostics for code 56 . not in the GM sunpro code scam. thank you
If it only comes on when decellerating, I would say it'* your boost control solenoid. You need to replace it.
The diagnostic is from the GM service manual.
We have seen your problem numerous times before.
http://www.bonnevilleclub.com/forum/...pic.php?t=2066
http://www.bonnevilleclub.com/forum/...pic.php?t=4074
The diagnostic is from the GM service manual.
We have seen your problem numerous times before.
http://www.bonnevilleclub.com/forum/...pic.php?t=2066
http://www.bonnevilleclub.com/forum/...pic.php?t=4074
read topic 2066 , 4074 my boost does go above 5 and up. cann't locate boost solenoid. only plastic cover is for wire harness . can u helk . thanks for the great input!!!



