4 at Once - Ps 0102, 0122, 0463, 1122

[Stadawim]

Yup, got em all at once. Nifty.

So i've been having this problem lately of the car chugging a little at both lo & hi speeds. This has been only the past week, and i didn't use her at all over the weekend. And there have been a couple of cutoffs in random areas. I've searched through the forums here to see peoples' troubles relating to what i've experienced and went through a couple of the fixes that i could do while at home - i'm in the midst of a very busy week at work which leaves me no real time to chase this down and go and get replacements if need be (luckily work is not all that far away). In any case, during this time she never popped any codes with which to scan and relate to. I had a plan tonight (ironic) to schedule a diagnostics checkup to see what the culprit could be when lo and behold the SES illuminated on the way home. I immediately went to Advance so they could check the code, and came back with all those.

All of them.

My questions relating to this and what the scanning girl gave me; could this be a bad ground or blown fuse? Anyone know if these are on a same relay or fuse somewhere? Could this be the end result of a new battery? I recently changed the battery out, although it is now 2 months old and this only started happening this week. Is this a CM going bad?

[Archon]

P0102 indicates that the frequency output of the MAF is too low. Its voltage source is 12v from the IGN1 fuse.
P0122 is set when the output of the throttle position sensor is below .1v. Its voltage source is 5v from the PCM.
P1122 is set when the above condition is intermittent.
P0463 shows that the output from the fuel level sensor is too high. Its voltage source is ignition voltage from the PCM.

You could start by disconnecting the MAF and see if anything improves. Also look for wiring problems in the area of the MAF and throttle position sensor.

[Stadawim]

So... After doing that it does seem better. I had already cleaned it, just to see if it was dirty. It didn't look it, but i did it anyway. The wires around the TB area all look in good order; no frays or exposed leads. Connectors in good shape. Overall area is actually pretty good looking. Now that it's been disconnected, it has been better. I guess the MAF has gone bad. But why all the codes? I would've expected a couple of those. Four!?

[mikeluscher159]

I find it a long shot, but could the really screwed up MAF screw up the 5v reference circuit to other sensors that also get there 5v reference from that same circuit?

[nos4blood70]

When the MAFs go bad on these motors, they cause many issues, and typically point to other things being the cause.

PM harofreak00 for an OEM replacement. Aftermarket MAFs tend to somewhat crap.

[Stadawim]

I am seeing that. I disconnected the MAF to see if that would help things. It does... To a degree. Overall the drive is better, there are way less stutters and hesitations. Initially it turned out fine actually, but then the troubles started coming back gradually. I now have a MAF in place from a PA and all seems fine. Haven't got a chance to check and see if all codes have cleared since the replacement though.