i have a 87 cressaida is is running very bad. it is missing i replaced the mass air censer thinking that would stop the miss and all the sparkplugs and wires i just want to make it run good i konow this is a good car. please help.:frown:

Its missing you say...maybe its your timing. have u removed the distributor lately. can't really tell what the situation is, i just didn't hear u meantion timing. I don't know how u came to the conclusion of replacing the mass air censor (MAF). The next thing it might be, and since it is an old car, maybe its time to clean or replace those injectors.

Pull the timing cover check for a cracked belt look it over closely for cracks,excessive wear or a broken piece on the bottom. If everything looks good check the timing.

i agree, check the timing, if not, grap a bit of rough sandpaper or a flat-blade screwdriver, and clean up the corrosion on the contact points on the dizzy cap, as they may not be sparking properly, or it may not me at all on that cylinder, which cylinder(s) is missing?

Did u check to see if you cross the spark plug wires.?