They might or might not and there are many cases whereby replacement of parts did not help. This is more likely to be an electrical problem and I would suggest checking the wirings first.
It can only occur in the morning because of temperature difference, charging system problem or electrical conductivity and any wrong voltage would cause the code.
If you have a scan tool to monitor the TPS and TAC wiring circuit voltages, that would help identify the problem.
If your mechanicswants to replace the parts, would they take them back if it does not work?
Monday, September 24th, 2012 AT 1:53 PM