I just picked up the car today, I knew it had a miss. Gave it a tune up, no difference. Pulled the injector wires to test injectors, saw one bad one, but I didn't check them all. GOt the new injector is, same thing. COmputer reads code 36. After test driving it still runs like craps, Tested the ohmz on the injector connectors, Injector 2,4,6,8,7 all read 1.7 ohmz. 1,3,5 read 3.1. What should the ohmz be, does anyone know? I know that I do need more injectors so that figured out, I hope it takes care of the spark knock it sounds awful, sounds like a knock but only does it sometimes so I know its not a rod knocking. Any help?

 

Unless you are using low impedance injectors, the injector solenoid resistance should be closer to 12½ ohms.

Then again, I'm a bit confused by your description of the method. "Fuel injector connector ohmz" implies that you are testing the resistance of the harness, not the injectors.

Further, the error code "36" is related to a MAF sensor burn-off circuit failure, so you may need to check connections at the MAF supplemental module on the back of hte ECM - Unless you've changed to a later ECM.

 

I was checking the connector to make sure the wire wasn't bad, quess I'll have to check the ecm then

 

You don't need to check the ECM. You need to measure the resistance of the injectors themselves. The ECM should present a relatively high resistance, since you will be reading through an output transistor collector and base biasing resistors. The reading you get would be meaningless. Moreover, unless you use a high impedance, current limited ohmmeter, you could damage the ECM outputs by measuring resistance.

 

thanks for the help, but how do I measure the resstance of the injectors?

 

Disconnect the connector, and measure between the two metal tangs on the injector itself.

 

thanks

 

Ok, put all new injectors in, ohmz range between 14.0-14.3. Checked the old ones, they were 16.9-17.2. That got red of the 36 code. But there is still a miss and spark knock. Not sure what to do now. Tune up is new besides coil. no codes in the computer, quess I'm going to check and see if the cam is bad or loss rocker arms, any sujestions what else it could be

 

Also tired this, unplugged EST, no change when running but light came on. Unplugged TPS, no change but light came on. Unplugged IAC, no change but no light either. at a loss of what to try next, have tired everything that I can think of and have no way to test the ECM to see if it is bad and don't have a spare one setting around.

 

by the way, scanned it this weekend, the one weird thing is that the scanner said the rpm was 150 the whole time, even when reving up, this is another on that loses me!