Help with some codes - 2000 SR5 V6

[DDCHislop]

Hey guys,

I am needing some help with check engine codes that I am assuming are a fairly simple fix but Im not sure how to go about diagnosing and repairing (but I am newer to mechanics so sorry if these are noob questions). Any help much appreciated!

P1130 - Air/Fuel Sensor Circuit Range/Performance, Bank 1 Sensor 1
Probable cause:
- open or short circuit condition
- Poor electrical connection

P1135 - Air/Fuel Sensor Heater Circuit Response, Bank 1 Sensor 1
Probable cause:
- open or short circuit condition
- Poor electrical connection

Does "Bank 1 Sensor 1" indicate the specific sensor? If so, where would I find it on the truck?
Does this mean it needs replacing? If so, could someone point me to the part I need?
Could this effect my MPG?

P0125 - Insufficient coolant temperature for closed loop, fuel control.
Probable cause:
- Faulty Thermostat
- Low coolant level
- Faulty ECT

I looked really quick and my coolant looks full and I haven't noticed any overheating or it running really hot... not sure what to do about this.

Thanks guys for the help!

 

[TheDurk]

Hey guys,

I am needing some help with check engine codes that I am assuming are a fairly simple fix but Im not sure how to go about diagnosing and repairing (but I am newer to mechanics so sorry if these are noob questions). Any help much appreciated!

P1130 - Air/Fuel Sensor Circuit Range/Performance, Bank 1 Sensor 1
Probable cause:
- open or short circuit condition
- Poor electrical connection

P1135 - Air/Fuel Sensor Heater Circuit Response, Bank 1 Sensor 1
Probable cause:
- open or short circuit condition
- Poor electrical connection

Does "Bank 1 Sensor 1" indicate the specific sensor? If so, where would I find it on the truck?
Does this mean it needs replacing? If so, could someone point me to the part I need?
Could this effect my MPG?

P0125 - Insufficient coolant temperature for closed loop, fuel control.
Probable cause:
- Faulty Thermostat
- Low coolant level
- Faulty ECT

I looked really quick and my coolant looks full and I haven't noticed any overheating or it running really hot... not sure what to do about this.

Thanks guys for the help!

Just change your Air/Fuel Sensor. That is the front sensor on the 'Cali.' type two-cat exhaust system, just forward of the front cat. It's where the exhaust starts its vertical run up to the cross-over. This is an easy one. Do that, and all three codes should go away.

To get a new OEM sensor for a good price, go here and get your DENSO part number. Then go buy it from wherever your find the best price, usually Amazon or Rockauto.com. If the truck lived in the salt-zone, you will also need two new M8-1.25 stainless steel nuts (or part #90179-08059 at the stealer) as yours will be rusted out. If the truck lived elsewhere, check if you will be able to reuse them. Va. is kind of on the salt-zone border.

 

[DDCHislop]

Just change your Air/Fuel Sensor. That is the front sensor on the 'Cali.' type two-cat exhaust system, just forward of the front cat. It's where the exhaust starts its vertical run up to the cross-over. This is an easy one. Do that, and all three codes should go away.

To get a new OEM sensor for a good price, go here and get your DENSO part number. Then go buy it from wherever your find the best price, usually Amazon or Rockauto.com. If the truck lived in the salt-zone, you will also need two new M8-1.25 stainless steel nuts (or part #90179-08059 at the stealer) as yours will be rusted out. If the truck lived elsewhere, check if you will be able to reuse them. Va. is kind of on the salt-zone border.

Thanks for the help and clear info!

For the SS nuts, what or where is "the stealer"?

 

[ARC]

Thanks for the help and clear info!

For the SS nuts, what or where is "the stealer"?

Stealer=Dealer

 

[DDCHislop]

Stealer=Dealer

Oh of course!