1999 Volvo S80 T6 Trouble Codes P0300/P1171/P1332/P1174

[robbtagg]

So, my 1999 Volvo S80 T6 has some issues.

Just replaced the spark plugs and the fourth cylinder coil because I had a misfire in the fourth cylinder. Check engine light went off for about 30 miles then came back on. But the car was running a LOT better after the replaced coil and plugs.

Now I get a pretty distinct smell of gas coming out of the exhaust. I took it in and got the codes:

P0300 At least one cylinder misfire
P1171
P1332
P1174

I was wondering if these four codes are a cause of any one of them. Would a misfire cause the other codes to pop up? Or would any of the other codes cause the P0300 code to register.

Any insight would be appreciated.

Thanks.

[VCA]

P0300 At least one cylinder misfire
P1171
P1332
P1174

What an interesting constellation of codes:
P1171 - ECM-261A - long term fuel trim, too high
P1174 - Air metering
P1332 - CVVT issue [could be the solenoid or a timing belt that's jumped a tooth]

Check all vacuum hoses (especially flex hoses), intake piping, etc. Make sure no unmetered air is making it into the intake system after the MAF. Unplug the MAF and drive to see if symptoms improve (if it does, new MAF).

As for the CVVT, I'll defer that to those with more experience in checking that the engine's in time, but it could be as simple as a stuck CVVT solenoid--an easy fix.

[dcarlson12]

P1171 and P1174 both refer to long term fuel trim high limit.
I had a similar problem on a 2000 Chevy Astro. I solved it by using to some STP fuel injector cleaner which removed 'gum' deposits which were causing small check balls from seating in the fuel injector downstream 'spider' legs from seating properly. The result was that fuel was leaking into the intake manifold even when the injector(s) were not being told to open.
You might have a leaking fuel injector(s).
It is something you might want to try....

Here is a link to more info re: P1332:
http://en.allexperts.com/q/Volvo-802/S8 ... quires.htm
Can't see how this would cause a rich mixture but ????

I have uploaded the VADIS 'page' which shows the conversion for generic DTCs to Volvo DTCs...

[robbtagg]

Ok, so I have the codes down to two now. One is still the CVVT Solenoid P1332, I am going to replace this shortly. The other code that I have is 1132 Bank 1 O2 Sensor.

My question is, could 1132 be caused by the CVVT solenoid being stuck? Is it possible that this code is registering based on the stuck CVVT and that once the CVVT is replaced that this code might clear?

Does having the P1132 code mean that I HAVE to replace the o2 sensor, and if so, is replacing the O2 sensor on Bank 1 easy? Can I do it myself?

Thanks

[Juan62]

Not sure, because the O2 sensor will become faulty when the fuel mixture inproper. You can replace the O2 sensor yourself with a proper o2 sensor removal tool. See IPD ad above this forum. Trace all your fuel lines and vac hoses for leaks/cracks.