Hi, My truck turns over but wont stay running. I had a check engine light for a while and the error codes were: PO100, P1310, PO171, P0420, PO440
Found this info below, tried #1 , that's not it. Any ideas? My mechanic cannot get it to stay running.Thanks
#1. Try different key when starting. Worn ignition lock. Newer key might be able to trigger ignition on circuit
PO171
A. MAF Air Flow Sensor > Clean & replace lines.
02 sensor bank 1?
fuel injector
dirty fuel filter
exhaust leak before bank 1
B. P1310
P1310 TOYOTA code possible causes
- Faulty Ignition Coil No. 3
- Ignition Coil No. 3 harness is open or shorted
- Ignition Coil No. 3 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
P0420
P0420 TOYOTA code possible causes
Faulty Three-way Catalyst Converter Bank 1
Exhaust Tube Intake Air Leaks
Faulty Oxygen (O2) Sensor Faulty Fuel injector(s)
Leaking Fuel Injector (s)
Faulty Spark plugs
Improper Ignition Timing
Faulty Engine Control Module (ECM) Dirty Air Filter
PO440
Well I thought you don't have a bunch of separate problems normally one problem will trip all those. So start simple swap ignition coil for number three to something else if the Miz mooz you know the coils bad do that with various parts until you can at least get the car running and stabilized then you can analyze it further if. And really find another mechanic the guys that joke if you can't figure out what's wrong with a car that's what he's supposed to do for a living
Thank you Scotty, I will tell him the suggestions you make, and thank you. Thanks for replying.