Thurs went to a few stores, filled up from about 1/8 to just over 1/2 tank, it drove ok, and it's been running smooth.
Parked it in my garage.
Fri morning it wont start, cranks but not even an inkling of trying to fire up.
Fuel pump is ok (also fairly new).
No DTC's.
Batt is new from Feb 2025.
EFI and Fuel relays (all OEM btw) test ok, but I am replacing them.
EFI 20A fuse is ok.
EFI2 10A fuse is ok.

About to check if there's spark or not.

Any thoughts other than "good luck"? lol

 

Take a fuel sample and get it checked for water and contaminants?

Chip H.

 

thanks Chip
You think filling up some with bad gas the engine would start ok on the good gas in lines, then run ok on bad gas for a bit, but bad gas not allow it to start?
My last check is spark, I didn't do that just yet, probably will do that tomorrow. If there is spark then perhaps I will pump out the tank and add in some fresh fuel with some dry-gas.

Some online digging I find possible other issues for the cause, maybe my timining belt failed, but it's not that old. And I did read another post where bad could could run after filling up with bad gas and then won't start.

Will report back with more test results.

 

The mystery is perhaps coming to an end.

Spark test was a fail, no spark.

I then attached my DTC reader again, P0335.

So tomorrow I install a new crank sensor.

 

Installed new Hitachi sensor. All fixed.

I did replace more old relays, and buffed off all the mini-fuse legs with small wire brush, you be surprised how they begin to tarnish over time. So hopefully it runs problem free for next 5yrs. I did notice the COP gaskets have stretched beyond their yield, probably just from heat and old, so I will seek out replacements for my next plug change.