Pulled some codes. but I lost my code book.
- Thread starter The Green GT
- Start date
Ok, I found them and one is the A/C was on durung the test, and the others are Primary Fuel pump circuit failure, and MAF voltage low.
How would I fix the MAF voltage and where is the fuel pump circuit? In the CCRM?
EDIT: I remember something drakesdad said about the MAF should be straight up, where mine is not since I installed my CAI. Could this be the problem?
How would I fix the MAF voltage and where is the fuel pump circuit? In the CCRM?
EDIT: I remember something drakesdad said about the MAF should be straight up, where mine is not since I installed my CAI. Could this be the problem?
Eric, we don't know about the MAF or other items since you didn't post what symptoms the car has.
Clocking the MAF is not a bad idea if you can do it. Cleaning the wires is a very good idea if you get a low voltage MAF code.
The CCRM houses the FP relay, like you said. That code can either be legit or a ghost code. If the relay or circuit burped for 1/10th of a second, it can generate the code. THIS IS NOT TO SAY THAT THERE ISNT A SERIOUS ISSUE.
Good luck.
Clocking the MAF is not a bad idea if you can do it. Cleaning the wires is a very good idea if you get a low voltage MAF code.
The CCRM houses the FP relay, like you said. That code can either be legit or a ghost code. If the relay or circuit burped for 1/10th of a second, it can generate the code. THIS IS NOT TO SAY THAT THERE ISNT A SERIOUS ISSUE.
Good luck.
Well it has a "miss" at low RPM's I think has to do with the fuel relay, besides that, nothing besides my cooling problems.
I'd actually think MAF for the miss (more-so than the FP relay). To lose juice to the pump only at Low RPM's would be funkalicious (not that it cant happen, but it's not real likely IMHO).
Good luck bud.
Good luck bud.
The thing is that I pulled codes before, and it was "missing", and when I didm that there was only the fule pump code. The MAF code has just came around.
Hmmm. maybe I should go ahead and get that carbed 331 stroker with three two barrels then. lolHISSIN50 said:
But the fuel pump relay is in the CCRM right? It started the miss when I changed my HB and I had to take the CCRM off, Im thinking I messed something up.
If you were losing fuel pump power for any amount of time, you'd be high and dry.
Do check the bolt on the CCRM wiring connector. It's a small head bolt (6 or 8 mm - something like that) and make sure it's snug. You could undo the connector and inspect the pins too if you wanted.
If you want, check your plug wires. You gotta be real careful when you do it: At night, let the car idle and spray atomized water on the wires (using an old spray bottle filled with water). If it looks like Peter Pan, you've got spark leakage and that can cause a low RPM miss (that's where the miss is often most felt).
If you really wanna check out the fuel pump side of things, I suppose you could rig up your DMM so you can observe voltage to the pump in real time. You could also use a little LED that's lit when the FP is on. Or just swap CCRM's.
Good luck Eric.
Do check the bolt on the CCRM wiring connector. It's a small head bolt (6 or 8 mm - something like that) and make sure it's snug. You could undo the connector and inspect the pins too if you wanted.
If you want, check your plug wires. You gotta be real careful when you do it: At night, let the car idle and spray atomized water on the wires (using an old spray bottle filled with water). If it looks like Peter Pan, you've got spark leakage and that can cause a low RPM miss (that's where the miss is often most felt).
If you really wanna check out the fuel pump side of things, I suppose you could rig up your DMM so you can observe voltage to the pump in real time. You could also use a little LED that's lit when the FP is on. Or just swap CCRM's.
Good luck Eric.
Ive tightened the screw and checked the prongs a few times since its been doing this. I have also noticed that it dosent do it nearly as bad as it used to.
And Ill check the wires and stuff tomm night. thanks
And Ill check the wires and stuff tomm night. thanks
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