I allowed my '97 Lexus es300 to sit in my front yard from Feb-May of this year.
Obviously the battery died, and my buddy and I went to jump it… It was 11:30 at night, we were both tired and accidentally ran my car through a series.( + to - )( - to +). I went to autozone and got a new battery, hooked it up… and only certain electrical devices worked. I went under the hood and checked the fuses, and of course the main 100A fuse blew. I replaced it, and everything but the radio turns on.
I now try to start the car, the engine cranks, but wont turn over. I put new fuel in the tank, and when my ear is pressed to the tank while the car is cranked I can hear the fuel pump whirring. While cranking the engine, I don’t smell any gas or fumes under the hood. I’ve tried several times to crank while pressing the gas pedal, but to no avail (over the course of a few hours…)
Could it still be an issue with fuel or is something else more sinister at play? My next guess is an electrical relay issue, seeing as I fried the 100A fuse.
Any advice on this issue would be so greatly appreciated.
Thanks in advanced.
The 100 amp fuse is for the alternator, you will have other blown fuses. I have repaired a few Lexus vehicle that were connected backwards during a jump start and have not had to replace a computer. You may have damaged the ECM but check each fuse box first.
The one that was busted was the 15A EFI above the horn. I sadly have a breathalyzer and after working on my car for nearly 4 hours today cracked a brew and cant check if its the culprit.
Also, the Rad.01 was busted, so managed to find the culprit behind the broken radio. It functions properly now.
You can’t crank the engine but if the ECU is dead or has no power the check engine light won’t be on with the ignition in the “Run” position. If the ECU is active you will see a check engine light with the ignition in the run position.
I LOVE YOU. My sober roommate just arrived home and had him check if it would run.
Heard the beep of the breathalyzer saying he was clear, turned the key… and BOOM. Life.
Thanks for giving me hope instead of turning it over to a mechanic.
Much appreciated and much love, the screams from the garage brought all my roommates out to hear the revving of the engine.
I’m guessing you aren’t getting a spark at the spark plugs. Which you should during cranking. Suggest you test that idea, ask a shop to do the test, are you getting spark at the spark plugs during cranking or not? Once you know that you can begin to narrow down the source of the problem.
One thing you got going for you, the engineers who design cars anticipate this will happen, and design the cars so when it does, it doesn’t damage the ecu for the most part. You probably just have one or two blown fuses, fusible links, or other components like relays still to sus out.
