Question about 1990 Pontiac Firebird
Have you replaced the fuel filter recently? when those et clogged it can cause similar issues. May be time for a tune up with plugs/wires/air fliter.
Posted on Mar 18, 2014
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Posted on Jan 02, 2017
Hello! Just a quickie, I'm in the U.K. and have come across this problem on many European Vehicles newish or old.
Catalytic Converter's possibly collapsed or blocked, try removing it for a very noisy test, if it solves the problem either replace or clear the obstruction (This may be a violation of emmision laws) Who knows??
Posted on Dec 16, 2008
SOURCE: stalling at lights
This is most common with Gm cars your torque converter switch is sticking.and keeping your torque converter applied . you can unplug the converter and try it.its a square plug on the front of your transmission.just unplug it and drive the car it turns the torque converter off. but you should have it repaired for it may cause your check engine light to come on phil
Posted on Dec 26, 2008
Sounds like your fuel pump is going bad! The more you press on the pedal the more demand is on the pump and it cant keep up cuz its junk. Try to limp it to a shop to replace it, unless u wanna do that yourself.....
Posted on Jan 19, 2009
RPM's up and down check EGR valve and sensor. EGR valve and sensor control idle. That's why your getting the surging on rpm's and this could be giving out the other codes. If mass flow was bad car will not start and the same for the map sensor. O2 sensor measures gas and air for right mixer. TPS controls 0-60 speed as in throttle respons.
Posted on Apr 28, 2009
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