S60 2.0t emmission problem need help please

[teddy241091]

I have 2001 volvo s60 2.0t (LPG) bought it in september an part way home from buying it the engine light came on an said sumat like emmission fault service required

To be honest i think previous owner reset it before i bought it as ge lived very local to where i was meeting him but took ages to get there

Bassicly when just before code appears i can tell when its about to as theres a slight loss in power an when i start it it will cut back out then when code does come out it kinda does same but abit more loss of power cuts out on tick over part of the time an slightly rough idle an pops an bangs fair bit

Read it few times but code i was having was p1132 or p1172 most of the time

I got a cheap second hand maf an front 02 sensor an no change

Took in for mot other week an failed on emmisions so now stuck with no car an need it back on road asap
It was supposed to be 0.30 an first test was 0.47 an on retest was 0.56 even tho i put a bottle of cataclean in not long before an got it nice an hot

Ive done alot looking round online an theres so many reasons it could be an havnt got money to keep geting bits as had new ball joints an front wishbone bushs an rear antiroll bar for mot also

Any help or advice would be great thanks
Also if any one lives local could cover fuel cost for you to come have a look as kinda stuck
Im near st austell cornwall

[M-R-P]

Right - reading your other post, I'm sorry I missed this. Let's see what we can do...

P1132 is the front lambda - if this is coming back after replacement, then there's something wrong with the sensor or the wiring to it. Worth investigating.

P1172 is likely to be a vacuum leak - check the maf to turbo pipe.

Have you tried running it with the MAF disconnected? does anything change?

[LeeT5]

Having listened to the symptoms and noting the DTC's I would say this is leaning more towards an O2 sensor fault. O2 sensors over time become lazy and take longer to switch. Therefore, on an emmisions test, it will fail because the air/ fuel ratio will not come down quick enough.

A MAF will nealy always cause rough running but I wouldnt rule out an air leak first!

Best of luck finding the fault. My advise would be get the car diagnosed properly or you'll waste money.

[teddy241091]

I have had a second hand replacement maf an 02 sensor
An still the same
An yh tryed with maf disconnected an ran worse some times recs wouldnt even change if foot was to floor an i still think it may be plugs or coil packs or air leak