Started up the Hoe after about a week of sitting. I started it up and it would barely run. Put it in D and took it for a little drive. It ran like *** for about a minute, stuttering, no power, but then seemed to be fine. The gas tank was almost empty so I thought maybe the fuel was getting interupted but the FP never dropped. The AFR was way rich even at idle so its not a fuel problem, except maybe too much fuel. Drove it to work the next morning and it ran pretty good. On the way home after work the SES light came on and I pulled these.

P0172 System too Rich (Bank 1)
P0179 Fuel Composition Sensor Circuit High Input

Any ideas?

 

O2's maybe?

 

This was my original thought. I got a code a few weeks ago. Forgot the number but it was dealing with the rear O2. I have aftermarket cats and I think they are breaking down. Again. I need to know which DTC to turn off in EFI Live to quit setting that code. I dont know if the new codes are related or not.

The FPR vaccum line is dry and the MAF is sealed tight. Leaky injector?

 

Get some carb/fuel injector clear and spray it around the injectors. I cant help you with the efilive yet because im a noobie at that and im still waiting for this guy on here with a slow truck to send it JFWY.

 

lol. Yea, that guys truck is slow.


What do you mean spray around the injectors? While the truck is running?

 

When your spray the cleaner around anything the engine will rev up or down if something is leaking. Also i think the rear o2s will not affect your driving at all. They are just for emissions. You can check your front o2s by backprobing your 02s with a voltmeter. If you have a haynes manual it explains how to do this.

 

Would Engine Starting Fluid work (Ether) or would I be begging for a fire/explosion?

 

If you want to check your rear 02's, just turn them off with the DTC's and see if that helps. that way you can see if it's your rear's or your fronts.

 

What are all the codes I have to turn off?

 

uncheck or turn off all "sensor 2" 's. you have bank1 and bank2, so you turn off bank1sensor2's and bank2sensor2's. Hope that helps, i have HPT, but should be very similar with EFI.