Major Contributor
M30 emission failed, updates
Here are the readings
Driving:
HC ppm: 168 (limit: 55)
CO%: 1.88(limit: 0.31)
Idle:
Driving:
HC ppm: 263 (limit: 200)
CO%: 2.46 (limit: 1.00)
Ok, changed the O2 sensor and both cats nd drove 1 hour
Here are the readings
Driving:
HC ppm: 158 (limit: 55)
CO%: 0.91 (limit: 0.31)
Idle:
Driving:
HC ppm: 357 (limit: 200)
CO%: 5.58 (limit: 1.00)
I am guessing that something is wrong with the engine... I will try a compression test and maybe cap and rotor, there is a missfire somewhere.
Worse case... I will have to pull the engine.
Last edited by Bruno; 08-08-2007 at 10:10 AM.
'85 Euro 635csi Race Turbo, megasquirt, Group A
'92 525i Touring 5 speed, 3.46 diff, UUC 8.5lb flywheel, soon to be turbo.
'02 Subaru WRX Wagon with STI springs, bigger sway bars
4 Grand Master
No cats are expensive if you bought Magnaflow universal equivalent and weld them in.
Sounds like your timing may be a bit off... AFM... I don't think O2 will bring it down that much... then again, maybe it can. Check the O2 reading... 0.5V is what you are looking for or lower.
Grand Master
you need to find a "special" inspection station. my cats are now gone since I was having to pay for a special inspection anyway.The tint, headlights, smoked turns,etc are illegal and it was borderline smoggable (passed by 1ppm last year) anyway.
Major Contributor
Originally Posted by attack eagle
It is different in Canada. I will start with O2 and check for vacuum leaks then if it still fails I will get the cats replaced with ... ARG Aftermarket. I do not think that it is timing related.
'85 Euro 635csi Race Turbo, megasquirt, Group A
'92 525i Touring 5 speed, 3.46 diff, UUC 8.5lb flywheel, soon to be turbo.
'02 Subaru WRX Wagon with STI springs, bigger sway bars
Grand Master
Government stations then I take it? Best of luck to you.
Major Contributor
Canada doesn't test for NOx? Lean that thing out, after checking the spark plugs for a fouled 'en or fuel saturation from bad gap.
Love the 6er.
erased due to slander
3 Grand Master
Mine was on the dot for CO2% this year. We'll see what happens in two years!
Major Contributor
Getting somewhere, the engine light came on, on the drive back home. And the car started idling like crap... Odd
So I changed the cap and rotor and a vacuum hose, cleaned the ICV reset the DME, engine light came back on.
I will now check the O2 circuit, spray the engine to locate vacuum leaks, swap the AFM and drive the car...
To be continued.
'85 Euro 635csi Race Turbo, megasquirt, Group A
'92 525i Touring 5 speed, 3.46 diff, UUC 8.5lb flywheel, soon to be turbo.
'02 Subaru WRX Wagon with STI springs, bigger sway bars
4 Grand Master
An injector not closing perhaps. This was a big part of some recent trouble for me.
"The gas pedal wouldn't go to the floor if it weren't meant to be there"
Major Contributor
Could be.... in that case one cylinder should have a black spark plug???
I have a set of 21lb... maybe I should do a complete swap instead of the 19lb.
'85 Euro 635csi Race Turbo, megasquirt, Group A
'92 525i Touring 5 speed, 3.46 diff, UUC 8.5lb flywheel, soon to be turbo.
'02 Subaru WRX Wagon with STI springs, bigger sway bars
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