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1998 Pontiac Firebird Repair Question


Topics covered: Smog, Random misfire, Tire.
Mileage: 160,000 miles.

Asked on March 5, 2013

Pontiac Firebird Smog Problem

Hi, my Firebird won't pass smog because of random misfire.Calif. has a program(CAPS) to help with up to $500. in emission related repairs or retire car for up to $1,500. but you have to pick which one before you send app in.Smog guy won't say what may be causing the problem so I don't know if I should repair or retire it.Anyone have any ideas? Thanks

Avatar Asked by deb57

Answer

Replied on March 5, 2013

scan for codes and check fuelpressure first probably fuel pressure is low causing it if fp is ok then check compression and igintiion

Tiny Answered by hmac300 (expert)
18,722 answers provided
Replied on March 5, 2013

I scanned for codes & it was random misfire.i don't have the testing tool I need plus registration was due with smog test.This is the first time I've had to deal with this smog stuff & first FI car .

Tiny Response from deb57
1 question asked
Replied on March 5, 2013

you'll need to rent the gauges form an autoparts store as low pressure will cause random misfire. also lyou'll need to ask at auto parts as you didn't give enging size.

Tiny Answered by hmac300 (expert)
18,722 answers provided

Replied on March 8, 2013

It has a 3800 v6.I'll let you know what I find out & Thanks for your help !

Tiny Response from deb57
1 question asked