92 firebird 305 tbi hard miss
06-12-2017, 10:42 PM
#1
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Car: 1992 Firebird KITT
Engine: 305 TBI
92 firebird 305 tbi hard miss
My 92 firebird 305 TBI When i drive it i will have one hard miss until i shut car off and drive again and it will have one hard miss. I can start the car up drive a long time and only have one hard miss and throws check engine light for one second then go back off.
I did a full tune up and still does it.
Check engine light only come on when it miss and goes back off and stays off.
Has anyone ever had this problem?
I did a full tune up and still does it.
Check engine light only come on when it miss and goes back off and stays off.
Has anyone ever had this problem?
Last edited by Kevinfirebird; 06-12-2017 at 11:50 PM.
06-12-2017, 11:13 PM
#2
Senior Member
Re: 92 firebird 305 tbi hard miss
It sounds like the icm ( ignition control module) inside the distributor needs to be replaced
06-20-2017, 09:52 PM
#4
Re: 92 firebird 305 tbi hard miss
I have no idea how an ignition module can cause ONE misfire per drive cycle.
I would connect a scan tool, then be looking at (or even recording) the data stream especially during the "misfire".
I would connect a scan tool, then be looking at (or even recording) the data stream especially during the "misfire".