jonncarr

thanks!

I posted on here a couple months ago about a running problem with my new to me 2000 , long story short I replaced my ecu with little help but kelvin from cartunes said it would be needed eventually. I finally got to normal troubleshooting and discovered fuel pressure of 10 psi. So I'm thinking fuel filter, fuel pump and fuel pressure regulator. Any thoughts or insights into this would be appreciated. Thanks!

There are NO codes with maf connected. It barely idles connected , takes no throttle and dies. With maf disconnected it idles and will go up until 3k rpm. Runs rough. So what are some ideas? Thanks.

CEL is on with engine off/ key on. It’s on when running since maf is unplugged. Today I had to start it like 10 times to get it to idle. Then I could give it a small amount of throttle up to 3k rpm and it idled. I changed the maf because I had a Camry that had same symptoms and new maf fixed it lol. I know it’s getting air, fuel and fire BUT seems like a sensor problem I guess. What would you do? Thanks for your help. Btw codes now are p0100 air flow meter circuit p0101 mass air flow circuit/range performance. P0110 intake air temperature circuit and b2611 telescopic position sensor or motor. First 3 are from maf being disconnected I guess. Any help would be appreciated. Thanks

Recently purchased 2000 ls400 with 128k . Will barely idle , disconnected maf and it ran better. Replaced maf with eBay one and it runs worse. Jumped fuel pump circuit with maf disconnected and runs barely better. So I’m lost. Any trouble shooting help will be greatly appreciated. Thanks.