My 2000 volvo s40 failed the emission with codes:
P0014, P0015, and P0128, can anyone gage a reasonable price I should expect for repair?

 

Sounds like your VVT is acting up. the 14/15 codes are for your exhaust cam timing and engine timing which usually means the VVT solenoid is not engaging. The P0128 is the engine coolant temp sensor. The P0014/P0015 code happy meal has a lot of threads on how to fix short term/long term on this board so do a search on "VVT". You should be able to replace the coolant temp sensor for $15 plus another $20 for a new thermostat (since you need to lift the cap to see the sensor). The quick fix for the P0014/15 is to a) clear the codes prior to your emissions check to see if you can sneak by or b) try using "Seafoam" to clear the oil galleys on the VVT to get it working enough to not throw a code long enough to get your emissions passed. Long term fix may require a new solenoid/gear set up or removal/cleaning (your VVT search will find a DIY on how to do this).

 

Thanks for the tips, I will start researching.

 

P128 is usually the thermostat.

 

Thanks, two different mechanics look at it and said the thermostat for p128, they both also said the timing belt & pulleys for codes p014/15, oil is leaking onto the belt causing it to stretch & trip the code. both said they didn't do that work and I should probably take it to the dealer. one suggested I was looking at $1600 easy.

 

you were spot on, both mechnics confirmed what you said, both told me to go to the dealer for the repair.

 

Where are you located? Do you have another vehicle you can drive?

For my own amusement I've developed a kit that will fix the VVT pulley oil leak and may also fix the P0014 and P0015 codes (no guarantees on the codes) without removing the VVT pulley or timing belt. Will be ready to go in about two weeks if you can wait.

 

I'll wait for your update on the vvt fix kit. Let me know. How do I go about using the seafoam, do most mechanics provide this service or is their a "how to" video on this forum?

 

did you ever developed a kit that will fix the VVT pulley oil leak? still waiting.

 

Where are you located?

I haven't got around to testing the method on my own car yet.

 

Migs - where are you located? I suspect I may have developed a cam seal leak as well so I'll be pulling off the covers on my 2000 S40 this weekend to poke around. I'm thinking of writing up a DIY guide on how to investigate the leaks and VVT problems. Besides FCP just emailed me saying they have a cam alignment tool on sale... (No job is worth doing unless there's a new tool to be acquired)

 

Chicago

 

OK, I'll try the kit on my own car this weekend. If it works will post here.

 

Boston area. If you have a cam seal leak I can tell you from the CVVT hubs I've already looked at they develop a very slight groove on the sealing surface - you can just barely feel it with a fingernail. The three hubs I've looked at so far all have it. If you could figure out a way to chuck your CVVT hub up on an electric drill you could remove this groove with some fine emery paper. That and a new cam seal would fix the leak imo.