Ok well just got the car back from the shop due to a bent valve. Well got it back all seemed normal til last night and today. It happen after i made a left turn. The car started to bog down as if it was given tooo much gas or as if it didnt have enough gas. So during that time i would give it more throttle and it would get worse. Then all the sudden around 2.1-2.4k rpms it jumps and kicks in like nitrous, but really its going back to normal. Now i have a MSD blaster coil, MSD ignition box, Retard box, and a Digi wndow switch for my eletrics thats ignition stuff. I also have a walbro 255 pump that ive had for about 3 years.

I have msd 8.5mm wires, good spark plugs Tr6's. Mods are 355 big cam, stock heads, full bolts etc, along with 3200 stall..

Anyone know an idea what it could be?

I also checked everywhere for a vacuum leak maybe, but nothing.

 

I've read several threads on several boards lately that have confirmed wonky symptoms were due to bad optisparks. How old is yours? I gather it's quite difficult to diagnose and if there's any suspicion of a bad opti you might want to consider a new one. If it doesn't help, you've got a spare for the next time stuff happens. A bummer, in any case, of course.

Best -- Gary

 

o forgot to say i have a dynaspark!

 

I had that same problem, well my car didn't bog down. Unfortunately I think it went away on its own. Try checking plug wires. Or O2 sensors.

 

Its mechanical, there is no way it can heal its self. It will more than likely come back.

But as to the issue at hand. I am thinking it is probably something to do with the ignition, bad crank sensor maybe?

 

well just drove it again and it did it for a good 3 gases. Seems like its dragging or something. Then it will hit all power at once.

On one of the tries it went all teh way up to 3k and wasnt even shifting yet. btw its a A4. So its got to be something.

Checked tranny fluid and it was all good.

 

You think the MSD blaster coil could be causing this?

 

i think i fixed the problem. The wire from the coil to optispark wasnt all the way on.

 

I think I acutally remember it being my coil wire arching like no other.