Have Toyota Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner past midnight.
Did the same MAF code return? If so then you may have a concern with the O2 sensor reading, fuel pressure, vacuum leaks, or filters restricted. Those as well need to be monitored especially fuel trim which is the reading form the computer on how long it is telling the fuel injectors to stay open based on the amount of oxygen coming into the engine. If the random stalling is not related to the way its running then suspect a possible CMP or CKP sensor wiring or sensor possibly faulty.
Prior to completing the mandatory rating at the top of your screen. Let me know if I have not yet provided you with ~5 STAR EXCELLENT~service. Reply and let me know in more detail what you need to be pleased with my help.
Hello again Chris here,
Thanks Gene. This post will close on the 6th. So if I have not heard back from you by then. Sorry we could not get this resolved sooner.
If I knew the current code numbers I could provide the tests to do to see if the computer is bad.
Fuel pressure testing is needed.
To reset the computer you remove both battery cables, hold them together for one minute, reconnect 30 minutes later.
Any luck on the fuel pressure test yet?