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see if you have any trouble codes.Low fuel pressure,Ignition components,o2 sensor
MAF problem. There are alot of possibilities.http://www.obd-codes.com/faq/read-gm-2-digit-obd-codes-free.php
http://www.ericthecarguy.com/faq/solving-automotive-performance-issues
A lot of things can cause that code. The article posted above should get you started on some things to try. Keep us posted on what you find.
[quote=”mooxen33″ post=77785]Hey guys, have been trying to smog my 1984 Chevy pickup[/quote]
He did say 1984 . . . . unless that was a mistake, or this is a swap job, I would be surprised to find a computer / trouble code in it. I don’t think EFI in Chevy vehicles really became wide spread until later in the 80’s. I believe TBI started in ’86.
On a carb’d engine, clogged fuel filter, weak pump, kinked fuel line, dirty carb, bad float, or float adjustment, improper idle mixture adjustment, or wrong jetting in the card can all cause lean conditions.
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