Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
Hi Steve, Im David, thanks for visiting the site. Is there any relation to the weather when this happens? cold, hot, wet?
is the problem currently happening or is it running ok for now?
so when it happens you have to keep it revved up until you put it into drive, or it revs up by itself?
sorry, but intermittent problems like these pretty much require a scan tool that reads live data hooked up to the vehicle and can capture a freeze frame of the data when the problem starts occurring. then it can be diagnosed back at the shop to see what was happening during the problem.
the only thing i can suggest other than that is having a fuel pressure test and a compression test and a back pressure test done. to make sure the engine is ok, the fuel pump is ok and the catalytic converter is ok
its always possible to miss something electrical on todays vehicles. there is just some many thing that can issues. short of performing continuity test of all the engine control wiring and doing wiggle test of the wiring to try to get something to mess up.
do you still need assistance?