Do you have a check engine light and whane was last tune-up

Check and test the MAF and TPS sensors to include a fuel pressure check

Answered by rasmataz
68 questions asked

thanks for your reply.

No check engine light. Last tune up was last summer.

What's a MAF and TPS sensor?

Pardon me for my ignorance... I'm not averse to car maintenance, but I'm a newbie anyways. Basically, if this is something relatively straightforward, I'll attempt to take care of it myself, but otherwise, this is an attempt to get an idea of a problem before I take it in to a mechanic, who might otherwise sell me a bag of goods.

Response from niteshade
1 question asked

so, no ideas re: a preliminary diagnosis? Just looking for some hypotheses. The car was fine today, since it's sunny and dry. Has this ever happened to anyone?

Response from niteshade
1 question asked

Could be some random bad gasoline, but since you smell gas, start by inspecting all fuel lines to injectors/fuel rail. If you see no leaks, take it to Toyota and have the EVAP system tested.

EVAP (among other things) vents fuel tank vapors back to intake using a system of solenoids and purge valves. A dealer can test these individually to isolate the problem.

Answered by mmprince4000 (expert)
8,852 answers provided

thanks mmprince, this is good, clear advice for this stage. I appreciate it. I'll post here if I have further updates.

Response from niteshade
1 question asked

Keep us posted.

Answered by mmprince4000 (expert)
8,852 answers provided