P1618= Serial Peripheral Interface PCM Interprocessor Communication Error
you havent by anychance had any transmission work done on it have you?
You may have a bad gear shift selector switch, which is a fairly common problem. Or a damaged ECU wiring harness or bad ECU which is very hard to find usually!
For the p0751 code you are best off having a trans shop look at your shift solenoids, they could be faulty due to the p1618 code or they could be causing it.
Saturday, April 26th, 2008 AT 4:27 PM