Vehicle was running fine, and then it started to become difficult to start. Became more and more difficult to start - especially when cold. If you remove the intake hose, and spray ether into the throttle body - starts right up; and then runs fine. Replaced the Cold Start injector (which wasn't very old); did not solve problem.
Took the vehicle to Toyota, who spent some hours and stated the Electronic FI relay; and water temp sensor; and injection timing switch were all bad. The relay was declared to be intermittent. P/n's: (90987-02004-83; 89422-12010; & 89462-30011) Replaced all three of these; and vehicle promptly started after not being driven for over two days; and it was very cold outside. Thought it was fixed.
It does now start much more consistently - but still is exhibiting essentially same previous problem - except now when warm. (Sometimes.) And is now very intermittent problem. Starts right up; but does not necessarily start up after being shut down; and warm. We just got this 'fixed' - so it might still have problems when cold as well. To start - (if it isn't starting) you again spray in some ether - and it will start right up.
I have never replaced the Fuel Pump; and the Mass AirFlow Meter has never been replaced either. After it starts - the vehicle runs fine. And it is substantially better after replacing the three components which Toyota stated were bad. However; it previous has never had this type of problem; and I took it to Toyota because of this problem (generally do all the work myself over the years) - but it definitely still seems to have some remnants of the problem - or a very similar one.
Thanks for any help; and helpful suggestions, directions.
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Sunday, January 13th, 2013 AT 1:41 AM
