Help guys....

I took the van to the local dealership to have it diagnosed today...and I have to say I am confused and...confused. As I stated before, the van had NO CODES as read by fairly top of line Snap-on Scanner....only codes it pulled up were two tensionor air bag codes...it was scanned last night before it was towed...it was started an moved into the parking place and started to pull into the bay....they come back and say there are two codes...P171 and P174. P171 is Bank 1 Lean and P174 is bank 2 lean....I had a new pcv valve and tube in the van for them to put on...no problem there. However, they say there is a transmission code being thrown...but couldn't give it to me...they told me that the engine problem was fixed...which it ISN'T if it is still bogging down after getting warm...they charge me 162 bucks for from what I understand is putting on a flipping pcv valve and pcv valve tube...then tell me there is a transmission code...which I think the Snap-on should have caught....then said I would have to pay an other 97 bucks for the transmission issue...which MAKES NO SENSE TO ME...

If the van idles fine...then warms up and bogs down under load....WITHOUT SHIFTING HARD...IN ANY GEAR...however, bogs down in ANY GEAR...except Reverse where it will not bog down but turn off if you let off the accelerator...I mean there has NEVER been any transmission shifting issues....It feels like the tech couldn't find an engine issue so passed it off to being a transmission issue...but I don't see where it COULD be a transmission issue...Again..these codes just appeared...is their scanner system that much different where it would pull codes not seen by a rather top of the line scanner by Snap-on...when this bogging down happens...the vehicle isn't bucking....it is bogging down...you can hear it in the engine...

 

I found a guy that fixed it all....the voltages WERE all over the place....because I had wires in TWO locations that had melted and fused together....one on the manifold and the other somewhere else. It had gotten hot and melted the two wires together and caused all of this....he traced all wires from the sensors and pulled them apart and re-insulated them. I also had to replace my crank sensor, cam sensor and TPS sensor. I also had a cracked ICM. Been driving the van around the last three days...he did say that the grounding out could have damaged my PCM...so we are watching for any funny codes coming up to see if that happened. Basically...the van at start up was running fine because it was running in what I would call default mode...when the vehicle got to operating temperature and started running based on data coming from sensors...the data coming from the sensors was whacked out....

NOW I need to have a chit chat with Chevy...