SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Strategies & Market Trends : ajtj's Post-Lobotomy Market Charts and Thoughts
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: ajtj99 who wrote (30662)7/15/2021 3:54:35 PM
From: Lee Lichterman III2 Recommendations

Recommended By
ajtj99
roto

  Read Replies (1) of 97457
 
Just saw your other post about how it's working but temperature induced.
Sounds like pump or vapor lock type issue or maybe even vacuum in tank.
Any problem when on a long drive? If so, vacuum in tank from bad gas cap not letting air in. We get that here a lot where mud daubers build nests in any hole they can find.
There should be a air valve looking thing on the fuel rail on most cars but I don't know for sure on Toyota. You can put a gauge on it to test fuel pressure. Just make sure you put a rag over it then bleed off the pressure (gas is going to spurt out) before you try to hook up fuel gauge. That will tell you if you have no pressure, low pressure etc.
Vapor lock is rare on EFI systems but not unheard of. If lines are close to hot areas, bubble can get in the line.
Don't rule out fuel pressure regulator and the vacuum line controlling it. You can usually pull the vacuum line off and see a jump of almost 10 lbs of pressure when you do. If you have a mityvac vacuum pump, you can test the regulator to make sure it isn't leaking. Otherwise, look for fuel leaking into the vacuum line.
Good scanners can show you a lot of the values too. Too bad it isn't a Ford. There's a great free laptop scanner that shows everything and you can even turn on hidden options on cars.
Good luck
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News