On the way home as I was driving up the on ramp, just about to hit 60MPH in 2nd my car miss fired really bad, kind of like if I would of hit the rev. limiter. Shifted and drove on fine. Car drove for some 15 minutes OK at normal cruising speed. As I was driving down my street just before my house I tried to give the car some gas in 3rd going about 35 and car miss fired a tad. I let up and the car was fine again.
Other then really bad miss fire and short one the car seems to be running fine.
The car did not stall or rough idle before or afterwards.
What could be the problem?
Bad gas, ignition coil and or modulator going bad once again?

Any ideas?
Thanks.

 

Dizzy, maybe. I dont know if it is the coil. Also check your plugs, wires... all the basics like that.

 

I hope to inspect things tomorrow.

 

You may need to change to a high quality gas. DON'T just buy el cheapo gas because prices are currently high.

 

If it is genuine misfire I would say it is the quality of the fuel. But OK I do not know what youre driving habits are so this is my best advice.
What happens is if you use to low an octane say 87RON and you kick it in the guts it knocks and pings and sounds horrible right? Not all gas is the same my friend. I currently use 93RON Shell gas and I was previously using 87RON Mobil then 93 RON Mobil and switched to Shell which cured my previous knocking sounds on full throttle.
Also older cars may need higher octane gas for a number of reasons if you post tommorow I can tell you more. It has got to do with carbon build up and compression and volatility of the gas and other parameters.

 

Do you get the car out on the highway? What is your climate like?
Cause I doubt that your ignition coil or firing unit is bad. usually it is something simple, but if it isn't you don't go out and buy the most expensive parts to fix now do you?