Question about 1999 Pontiac Firebird
Check crank shaft sensor and coil packs to make sure you are getting a constant strong spark. Otherwise check the wires are secure and did not pop up a little. It does happen. Make sure plug gap is correct.
Check for any vacuum leaks, If needed, check that all injectors are firing. They do sell testers for these or you can us an voltmeter or test light on the injector wiring to make sure it is getting sufficient voltage.
You can go to autozone.com and register for full free online repair manual
Posted on Sep 30, 2009
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Posted on Jan 02, 2017
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