Re: [DML] Re: Engine misfiring-Updated-

["Elvis Nocita" <elvisnocita@xxxxxx>]

Dan,
I have no real idea what the reason is for your problem.
But you can be sure, that the chains didn't skip anything.
What I would check is - plugs (use the regular ones), ignition coil 
(I don't trust anything that doesn't show BOSCH on it) and the
fuel injectors.

There was one on the list lately who had a problem with a MSD-something
coil, too.

9 of 10 problems are electrical problems. Therefore I suggest to
check these parts first.

Elvis

> Here is some updates on the problem-The engine only misses at
> 1,000-3,000RPM Driving only. When the car is sitting and it is reved
> up and held, it doesn't miss at any RPM. Brand new 8MM wires were
> installed a few months ago with MSD hot coil, as well as spark plugs
> (+4s) and vacuum advance. Checked all the plugs, everything looked
> fine. No water was in the wells. Made sure all the wires were
> installed completely on the plug. Checked the vacuum advance, and also
> the solenoid (ticked when I unhooked electical plug with ign on). Made
> sure my idle motor switch was working. Motor sounds changed when I
> pulled the throttle with the ign on and engine off so I assume it is
> fine. Everything check out okay. Only misfires beyond 1/3~1/2
> throttle, if throttle is below this it will not misfire. The car
> shakes a lot while it is misfiring. Alternator is
> fine so it can't be a power issue. My thought was perhaps one of the
> timing chains skipped a tooth, but with it not missing at 1/2 throttle
> or above 3000RPMs I am not sure this would be the problem. In any gear
> (manual trans) once the tach hits 3,000 or maybe 3,200, it straightens
> out and runs smooth. I will dig out the cap/rotor tomorrow and see if
> that can be the problem. Can it be a fuel thing?-Pump maybe? With
> these symptoms perhaps someone can slim the problem down to just a few
> parts to check out. Thank you so much for all your help -Dan B
> VIN#5003
> 
> 
> 
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