Proper operating voltage
The OE maf is hitcahi, not delphi. But if its a delphi, it could be the high end delphi or the low end (they have both)
Part number?
And without your supercharger making boost, can you clear codes and confirm what ones come back? And can you send a picture of your engine with the engine off, i especially would ask you include one of the bypass actuator for the supercharger. Its the thing the vacuum lines are connected to that has a black canister with a linkage, by the fuel lines. cant miss it. Also include your battery/cable connections, your wiring harness (a far pic from above will suffice), and a picture of your airbox/maf/throttle body. The alternator grounds to the bracket, which grounds to the engine block, which grounds to the ground by the starter, which grounds to the battery. Because of that long path, any corrosion on the aluminum alternator, the aluminum bracket would cause the overall output to suffer because of poor grounding.
To remedy this, you could buy a ground cable with lugs, and ground to the case of the alternator on the top where it has 2 bolts holding it down. Have it nice and clean on the alternator with a wire wheel on a drill, and then sandwich under a bolt head. Run this cable directly to your negative battery post, or run it to the fender near your battery where your body ground is , which runs to the battery.
If you still have low voltage, either your IPC voltage reading from the BCM is poor, or your alternator is not putting out enough. Using a DVOM on the battery after upgrading the ground is an easy way to double check the readout.
Part number?
And without your supercharger making boost, can you clear codes and confirm what ones come back? And can you send a picture of your engine with the engine off, i especially would ask you include one of the bypass actuator for the supercharger. Its the thing the vacuum lines are connected to that has a black canister with a linkage, by the fuel lines. cant miss it. Also include your battery/cable connections, your wiring harness (a far pic from above will suffice), and a picture of your airbox/maf/throttle body. The alternator grounds to the bracket, which grounds to the engine block, which grounds to the ground by the starter, which grounds to the battery. Because of that long path, any corrosion on the aluminum alternator, the aluminum bracket would cause the overall output to suffer because of poor grounding.
To remedy this, you could buy a ground cable with lugs, and ground to the case of the alternator on the top where it has 2 bolts holding it down. Have it nice and clean on the alternator with a wire wheel on a drill, and then sandwich under a bolt head. Run this cable directly to your negative battery post, or run it to the fender near your battery where your body ground is , which runs to the battery.
If you still have low voltage, either your IPC voltage reading from the BCM is poor, or your alternator is not putting out enough. Using a DVOM on the battery after upgrading the ground is an easy way to double check the readout.
I cleaned all the grounds from the top side that I could get to easily and with plugs and wires I haven't thrown another code in a few days I'll get those pics up later thanks guys!
Thread
Thread Starter
Forum
Replies
Last Post
Dutch2005
Everything Electrical & Electronic
2
Sep 30, 2006 11:45 PM










