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08-06-2009, 11:16 PM | #1 |
'87
Join Date: Jun 2004
Location: Katy, TX
Posts: 632
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'89 Chevy Trouble Codes 32,34,45
My '89 Chevy truck has a 350TBI. I checked for trouble codes and it gave me 32,34,45. I researched and found the what the codes represent. Which one should I check/replace first? I'm not sure if a bad EGR valvle will trigger a bad MAP Sensor as well. A couple of months ago I installed Edelbrock headers and replaced the O2 sensor while I was at it. Later on I read that it is preferably to install a heated O2 sensor due to the exhaust cooling. Just need suggestions on what/how to check for a faulty sensor. Thanks in advance.
CODE 32-EGR system= Faulty EGR valve. Faulty or loose wiring and/or connections at the EGR solenoid. Faulty, loose and/or leaking vacuum hoses to EGR valve CODE 34-Manifold Absolute Pressure (MAP) sensor= Faulty or loose wiring and/or connections at the ECM. Faulty MAP sensor CODE 45-Rich Exhaust Faulty oxygen sensor |
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