I have a Carchip E/X and I did a little scan of the Firebird the other day and came up with some codes. Now of course, being a GM, one of them is the EGR system, as I have never owned a GM that didn't throw an EGR code at some time in it's lifetime. Anyway, here they are, and the Carchip definitions:
P0300 Random/Multiple Cylinder Misfire
P0400 Exhaust Gas Recirculation Flow
P1641 Unknown Powertrain DTC
Now the P0400 has been in there for a while, I've cleared it out, and it keeps coming back up, and we don't have inspections or emissions testing here so I don't worry about it.
The P1641 I've never researched to find out what it is, but it has come up in the past too. The reverse lamp switch is bad in the car, as the backup lights have only worked a couple of times, and only if you got the shifter in a certain position. The bulbs are fine, I've energized the circuit and they light up, so I know it's the switch. I don't know if this code has anything to do with that, or if possibly it could be my skip shift module has taken a dump, either way, neither one of those two things bother me. But I would like to know what specifically this code has to deal with.
The P0300 is new. I've had this scanner on the car while it's been in the shop at my work to see if anything pops up (like a tech hot rodding the car). I don't drive the car much, so I put this in the morning I took it to work so I could monitor this, which means that this code popped up before it was ever touched, so I know the shop had nothing to do with it. I just had the plugs changed out yesterday, so I'm thinking if I clear the code, it will go away.
I'm just wondering what you guys think these things are and whether they are worth concerning myself over. I'm about to go on a long road trip, so if something needs to be taken care of, let me know. Like I said though, the first two have been in there in the past, so I'm not nearly as concerned about them as I am about the misfire.
P0300 Random/Multiple Cylinder Misfire
P0400 Exhaust Gas Recirculation Flow
P1641 Unknown Powertrain DTC
Now the P0400 has been in there for a while, I've cleared it out, and it keeps coming back up, and we don't have inspections or emissions testing here so I don't worry about it.
The P1641 I've never researched to find out what it is, but it has come up in the past too. The reverse lamp switch is bad in the car, as the backup lights have only worked a couple of times, and only if you got the shifter in a certain position. The bulbs are fine, I've energized the circuit and they light up, so I know it's the switch. I don't know if this code has anything to do with that, or if possibly it could be my skip shift module has taken a dump, either way, neither one of those two things bother me. But I would like to know what specifically this code has to deal with.
The P0300 is new. I've had this scanner on the car while it's been in the shop at my work to see if anything pops up (like a tech hot rodding the car). I don't drive the car much, so I put this in the morning I took it to work so I could monitor this, which means that this code popped up before it was ever touched, so I know the shop had nothing to do with it. I just had the plugs changed out yesterday, so I'm thinking if I clear the code, it will go away.
I'm just wondering what you guys think these things are and whether they are worth concerning myself over. I'm about to go on a long road trip, so if something needs to be taken care of, let me know. Like I said though, the first two have been in there in the past, so I'm not nearly as concerned about them as I am about the misfire.
Comment