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PRUNEDA · 12-03-2009, 02:38 AM

UPDATE:

After ChevyTech's comment on back pressure, I got to thinking that it had all started after I had installed the headers. As soon as I had a chance I picked up the stock exhaust and reinstalled, and it solved the problem. The truck's SES light did not light up anymore. Awesome, thanks for your help ChevyTech!

12-03-2009, 02:38 AM	#21
PRUNEDA '87 Join Date: Jun 2004 Location: Katy, TX Posts: 632	Re: '89 Chevy Trouble Codes 32,34,45 UPDATE: After ChevyTech's comment on back pressure, I got to thinking that it had all started after I had installed the headers. As soon as I had a chance I picked up the stock exhaust and reinstalled, and it solved the problem. The truck's SES light did not light up anymore. Awesome, thanks for your help ChevyTech!