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backfiring and tach bouncing help!StealthElephant 12-25-2002, 06:01 PM Idles like a dream, at WOT pulls perfect. Try and drive it on a normal road and the tach bounces all the way to 5k, the car jerks you can hear somethings wrong in the engine. Replaced spark plugs, ignition module, distributor, no help.....whats wrong? MAF? O2 sensor? grumpygreaseape 12-25-2002, 10:02 PM miles on car? 87 is the big cap still? is the ground lead in the cap under the coil still there? if its a small cap take a squirt bottle of water and give the remote coil a bit of a wet down, see what it does. new distributor means? a complete new distributor from gm, a cheesy pep boys reman, a new body and transferred parts, are you using a NEW, as in out of an ac delco cardboard box that you opened, ignition pickup? delco ignition module? info please 1981zzz 12-30-2002, 08:18 PM you sound like you might be a hair out on your timing or your throttle posision sensor if u have tpi ;) StealthElephant 12-31-2002, 12:42 AM vacuum leak in the intake plenum :( well it's fixed... | ||