ok, I have a scanmaster. my MAF connector got snipped. I replaced it. But, it still reads a 48 DTC code? but, the MAf is reading normally? any reason why it's still giving me a 48 DTC if it's reading correctly?

Thanks!

 

Have you pulled the PCM BATT fuse for at least 10 seconds to clear the stored code?

 

hmm I figured after a few cycles it would dissappear.

I will do that.

 

ok. pulled same error codes came up.

 

how did you replace the connector. you might need to solder(sp) them due to teh fact that using butt connectors on the wire can change the resistence value to the computer

 

used the supplied buttend connectors. but I'll need to dust off the old gun then. just to make sure.

 

Did you clear the code with the Scanmaster? Hell, I don't know if they are capable..... If not, go to Auto Zone or Advance Auto and have them clear the code and see what happens.

 

well, I lost my instructions that came with the scanmaster, so I am un sure how to clear the codes. :/

 

The you have a couple options:
1. Remove fuses as stated above.

Most of the time this will work. However you need to be sure that the code is gone. Just because the light goes away doesn't mean that the code is gone. Your PCM will store codes.

2. Go to one of the above parts stores.. They have a diagnostic scanner that can view and reset codes. It is free and you will be sure that the code is deleted enabling further trouble shooting.

Good luck

Nick

 

Since he has a ScanMaster, he will know if the code is cleared. When you pulled the PCM BAT fuse, was the ignition switch in the "off" position.... it should be.

What kind of MAF readings are you seeing? Sounds like an intermittent wiring problem.

 

on the maf between 02-up to around 15-19 normal driving.

rpms up to around 4500

 

The ScanMaster indicates "grams/second". What do you see at idle? 6 to 10gps would be typical. What do you see at peak power/WOT? 220-250gps might be normal.

 

cold start is 6-7

after warm up it sits to around 4-5

I didn't watch it at WOT.