Question about 2005 Volvo S40
Intermittent check engine light
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Volvo S40 OBD II P0171 & P0237
for p0171 it could be a few things like intake/exhaust leak,air system,map/vaf sensor,fuel presure/pump,injector(s),ho2s(heated oxygen sensor.
Posted on Sep 19, 2008
The best thing is to go to your local Volvo maintenance shop or Volvo experts to find out whats the problem..usually the coomon ones I think is the programs inside its ECU unit..you try this..ask the volvo experts to reset the ECU and lets see..if problem arise then it is no doubt you might need the sensor..hope this help..
Posted on Nov 03, 2008
SOURCE: Check Engine light P1670
I have a 2000 Volvo S70 as well with the same code. Do you ever have trouble starting your car? I did and that's why I took it to the dealer. Appartently it's the code for the ignition immobilizer system in your car (part of the security system). Specifically, a part call the antenna ring. The antenna ring is the outer portion of your ignition switch on the steering column - the part that lights up and has the following printed on it: 0 - I - II - III. This part is actually a sensor that transmits the code stored in the microchip inside of your key. When this part goes bad it fails to transmit the correct key code to the computer, and cuts the fuel to the engine.
The dealer wanted to charge me $550 for a new antenna ring, two new keys, and software to program the car's computer with the new key codes. I purchased the antenna ring online for $50 and did it myself in 15 minutes - so easy. They claim that you can't replace the antenna ring without new software - lie! You only need the software if you are replacing the keys.
Car is running great.
Posted on Mar 30, 2009
Grounding issue "Circuit low" = ground wire problem or another system on the same circuit using too much current.
Check all wiring issues and then correct the issue to have the code go away :)
Posted on Apr 03, 2009
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160....O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161....O2 Sensor Heater Circuit (Bank 2 Sensor 2)
P0162....O2 Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163....O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164....O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165....O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166....O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167....O2 Sensor Heater Circuit (Bank 2 Sensor 3)
P0168....Fuel Temperature Too High
P0169....Incorrect Fuel Composition
P0170....Fuel Trim (Bank 1)
P0171....System too Lean (Bank 1)
P0172....System too Rich (Bank 1)
P0173....Fuel Trim Malfunction (Bank 2)
P0174....System too Lean (Bank 2)
P0175....System too Rich (Bank 2)
P0176....Fuel Composition Sensor Circuit
P0177....Fuel Composition Sensor Circuit Range/Performance
P0178....Fuel Composition Sensor Circuit Low Input
P0179....Fuel Composition Sensor Circuit High Input
P0180....Fuel Temperature Sensor A Circuit
P0181....Fuel Temperature Sensor A Circuit Range/Performance
P0182....Fuel Temperature Sensor A Circuit Low Input
P0183....Fuel Temperature Sensor A Circuit High Input
P0184....Fuel Temperature Sensor A Circuit Intermittent
P0185....Fuel Temperature Sensor B Circuit
P0186....Fuel Temperature Sensor B Circuit Range/Performance
P0187....Fuel Temperature Sensor B Circuit Low Input
P0188....Fuel Temperature Sensor B Circuit High Input
P0189....Fuel Temperature Sensor B Circuit Intermittent
P0190....Fuel Rail Pressure Sensor Circuit
P0191....Fuel Rail Pressure Sensor Circuit Range/Performance
P0192....Fuel Rail Pressure Sensor Circuit Low In put
P0193....Fuel Rail Pressure Sensor Circuit High Input
P0194....Fuel Rail Pressure Sensor Circuit Intermittent
P0195....Engine Oil Temperature Sensor
P0196....Engine Oil Temperature Sensor Range/Performance
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