Running rich w/ P0108
#1
Running rich w/ P0108
So, normally I'd figure this out myself. But it has me at wits end.
Symptoms:
-Very rich smelling exhaust
-A lot of exhaust after fire when blipping the throttle to say rev match and down shift or heel-toe shift. Seriously sounds like a gunshot if I get aggressive with it. Pretty funny actually.
-reduced power and occasional bucking
-P0108 MAP sensor voltage high
SO. My initial thought was the TMAP on the intake manifold. Took it out and it looks like crap. Covered in oil and one of the leads on the actual sensor part aren't looking too good. Very black possibly burned.
Now I know this car has two map sensors. Would one of them being out, the tmap, cause these symptoms?
I'd do a back probe on the sensor but idk what the normal voltages are and boy I'd hate to drop $80 on a sensor I don't need. Any input is appreciated.
Symptoms:
-Very rich smelling exhaust
-A lot of exhaust after fire when blipping the throttle to say rev match and down shift or heel-toe shift. Seriously sounds like a gunshot if I get aggressive with it. Pretty funny actually.
-reduced power and occasional bucking
-P0108 MAP sensor voltage high
SO. My initial thought was the TMAP on the intake manifold. Took it out and it looks like crap. Covered in oil and one of the leads on the actual sensor part aren't looking too good. Very black possibly burned.
Now I know this car has two map sensors. Would one of them being out, the tmap, cause these symptoms?
I'd do a back probe on the sensor but idk what the normal voltages are and boy I'd hate to drop $80 on a sensor I don't need. Any input is appreciated.
#3
Vacuum and boost readings have not changed from when it was running well to now either. I don't suspect a bypass valve issue
#4
#5
I'll have to pull them tomorrow and look. I just find it hard to believe that the spark plug, of anything, would be causing a map sensor voltage high code without a misfire.
My belief is that the map sensor is in fact bad and someone on here knows the voltage range for normal operation on the tmap and maybe a pin out so I know what to probe.
My belief is that the map sensor is in fact bad and someone on here knows the voltage range for normal operation on the tmap and maybe a pin out so I know what to probe.
#6
#7
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#8
What I have found is that there are no absolutes with codes...often times barely pointing you in the direction you end up having to go.
Best code list I'm aware of here: MINI Engine Codes
Tell us what you find tomorrow.
Best code list I'm aware of here: MINI Engine Codes
Tell us what you find tomorrow.
#9
Check the wiring on the intake manifold MAP sensor, are there any chafed sections or exposed wires? Fairly common problem, you'd just have to cut the affected wire, solder in fresh wire and insulate.
Other than that; faulty sensor, air leak.
Other than that; faulty sensor, air leak.
#10
All plugs are blacker than Hillary Clinton's heart.
Attached is a pic of the map sensor. If you zoom in you can see the lead on the resistor looking deal is very very black. I could not clean it off with MAF cleaner. Local dealer has sensor in stock....
Harness is free of breaks or tears.
Attached is a pic of the map sensor. If you zoom in you can see the lead on the resistor looking deal is very very black. I could not clean it off with MAF cleaner. Local dealer has sensor in stock....
Harness is free of breaks or tears.
Last edited by JCWCabrio; 11-07-2016 at 12:58 PM.