Do you guys know how the car acts when an injector goes bad? The hesitation and missing? My car is doing that, but the injectors all test out all right. The ohm's readings I get off of them are all between a range of 16.9 and 17.4. What else causes that type of problem?

 

Could be ignition, low fuel pressure or an injector. The only real way to test an injector on the car is to do a comparative pressure drop test. You pump up the rails. Turn off the key. Discharge an injector. If the drop is not the same the high one(s) is(are) bad. Measuring the resistance is not a complete check(although with multecs it is a good first start).

HTH

John

Heart of Texas Power and Performance

 

Yes, the fuel pressure drop test is about the only way to test for a bad injector on the vehicle.

I would expect if you have a faulty injector, that your spark plugs may offer some insite. check out the easy to get at ones. Perhaps you will luck out and find one that is obviously different.

You could also have a bad wire, cracked dist cap, or just worn out plugs.

Not sure what you have checked todate.

Mark.

 

I think I'm going to get some new wires. Not just as a replace and hope it fixes my problem, but because the MSD ones that are on there now, some are against the manifold now after the rebuild my dad and I did this past summer. The distributor is fairly new, about three months old. I would like to think that it's something as simple as an arcing problem, but with my luck it won't be. So... how do you discharge an injector one by one?