My 1995 v6 3.4 L camaro is missing from cylinder to cyclinder. It might miss fire on cylinder 1 one time and then the next time you drive it might miss fire on 4. Then sometimes you might drive it and it doesnt miss fire at all. You can cut the ignition switch off while you are driving and crank it again and it will stop for a while. We have changed all 3 coil packs, new module, new wires, new plugs, and swtiched out the computer. Any help would be great.

 

cam/crank sensor?

 

ok thanks we replace the crank sensor but we will try the cam sensor and see if that works.

 

wow i think uve just about replaced everything. almost has to be a wiring problem. one of the guys will come up with something, hopfully.

 

yea it seems like it. Hopefully the cam sensor will fix it.

 

We have now replaced the cam sensor and it is still missing. Any other suggestions would be great.

 

Might be tps but you only changed the spark side of it there are thre parts of combustion air fuel and spark check fuel filter and try adding a fuel injector cleaner

 

thanks for the advice. I replaced the filter and put two bottles in first before we started replacing everything else I just forgot to list it up at the top.

 

But if fuel filter is clogged would explain random miss fire or fuel pump beginning to fail cheapest to most expensive replace fuel filter its like 20 bucks see if you get any improvement then check fuel pressure and see if your getting sudden drops in pressure if it starts getting worse it might be pump if your getting drastic drops in rpm during missfire it might be throttle position sensor shorting out no obd2 in your car correct? Some 95s do

 

You are describing random misfire. This is usually due to a lean fuel mixture. Do as Toneman07 suggested. Check the fuel pressure and pressure regulator when the engine is under heavy load and requiring the most fuel.