94 q45a misfire in one of the cylinders

[TmaCular]

hey guys i got a 94 q45a that just had some work done missing pins on my ecm were replaced so my fuel pump would turn on. my mechanic told me there is a misfire occasionally in one of the cylinders. he also said its needs plugs. so ? is replacing coils and plugs would that stop it or r there others possibillities it could be. im also trying to find a mechanic in michigan that can help me as well as price for those things and recommended parts.

thanks a bunch

[SanCarlosQ45]

If your mechanic did a powerbalence test ask him to tell you what cylinder is mis firing. From that you can replace the spark plugs. If the problem persists then take the coil from the cylinder that is misfiring and swap it with another known good cylinder. If the problem has moved to the known good cylinder than you know that it is a bad coil. Or you can just buy one coil and start replacing one by one to weed to the bad cylinder.

[superuber]

Welcome, First off what maintenance has been done? Also current mileage?If you are behind on your service get uot your money!

[goody90q45]

Ohm your injectors (and knock sensors). A 10 minute DIY job with a voltmeter.

[lino]

Best prices on parts usually is through Joe at http://infinitipartsusa.com/Also great professional service.

[TmaCular]

Welcome, First off what maintenance has been done? Also current mileage?If you are behind on your service get uot your money!

not to much maintenance i did a conversion swap on the hydraulic suspension cause it was broke. regular oil changes with ext. perf. mobil one. other than that i got the car last year for 500 cause the suspension and fixed it for cheap so it was a steal. it has 118k on it. just recently i had 2 pins fixed on my computer and another six were loose. now im going into a tune up and looking to know all i should do.

[maxnix]

No other fluids? No filters?

You will learn a lot form reading the old posts.