We have a 97 Montana with 102K miles on it and it had been reliable. Today, after stopping to make a turn it felt like it stalled. I turned off the A/C and hit the gas it wasn't stalled but the RPM needle dropped as if the engine wasn't running. Then it went back up. Then the "Service Engine Soon" light came on. Stopped by AutoZone to have them check the codes but the guy said that he wasn't able to read from the computer. I'm not sure he really wanted to do it. But, he claimed that he can't get a reading and something was wrong with the wiring to the computer. Does that make sense?
Then on the way back home the RPM needle dropped and stayed there. The Van appears to be running fine.
Anyone kind enough to help pointing me in the right direction would be appreciated.