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skiddmark
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Post subject: CEL coming on above 3000 rpm on MC-II...  Posted: Sun Dec 19, 2004 8:10 pm |
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| mach 2 with my hair on fire |
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Joined: Sat Oct 11, 2003 11:36 am
Posts: 1025
Location: ID
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Any ideas what it is? It seems to do it regardless of load.
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Alan
1990 200q - 034 EFI stage 1B Parting now
1990 CQ - 3b swap in progress
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the_natrix
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Post subject: Posted: Sun Dec 19, 2004 9:24 pm |
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| I post, therefore I am |
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Joined: Tue Feb 17, 2004 1:05 pm
Posts: 4367
Location: Sobbing in the corner.....
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its prolly the knocka sensor or the air intake temp... however if its regardless of load, my guess is the knock sensor.....
the air intake temp sensor is a common fault, but usually only manifests when the WOT switch is triggered... however, the knock sensor comes into operation aslong as the engine is above 3000 rpm.... if i were you i would check the electrical connections on both...
if you know how, do a drive and trigger the CEL and then check the codes..... thats your best bet...
nate
_________________
Nate's Law:
The greater the number of people in the group, the lower the total collective, and individual intelligence of said group becomes.
Audi, imprisoning me, all that i see, absolute horror. I cannot live, i cannot die, trapped in my audi, my audi my holding cell..
1988 Audi 5ktq - 10vt Ms&s Extra
1993 Audi 90q - 12vt
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skiddmark
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Post subject: Posted: Sun Dec 19, 2004 9:32 pm |
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| mach 2 with my hair on fire |
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Joined: Sat Oct 11, 2003 11:36 am
Posts: 1025
Location: ID
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I was thinking its the knock sensors. I haven't checked the codes before, but after reading up on SJM Autotechnik it looks like I have to buy an led and and a resistor to do this? Also, would this cause the MAC-14 to pull back on the timing? Because I seem to be down on power.
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Alan
1990 200q - 034 EFI stage 1B Parting now
1990 CQ - 3b swap in progress
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the_natrix
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Post subject: Posted: Sun Dec 19, 2004 9:40 pm |
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| I post, therefore I am |
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Joined: Tue Feb 17, 2004 1:05 pm
Posts: 4367
Location: Sobbing in the corner.....
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yes , an led and resistor is like 2 cents.... and yes it would cause you to lose power
do you have noisy lifters? lol
thats generally my problem.... if i get a lifter ticking alot it tricks the knock sensor
nate
_________________
Nate's Law:
The greater the number of people in the group, the lower the total collective, and individual intelligence of said group becomes.
Audi, imprisoning me, all that i see, absolute horror. I cannot live, i cannot die, trapped in my audi, my audi my holding cell..
1988 Audi 5ktq - 10vt Ms&s Extra
1993 Audi 90q - 12vt
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skiddmark
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Post subject: Posted: Sun Dec 19, 2004 9:42 pm |
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| mach 2 with my hair on fire |
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Joined: Sat Oct 11, 2003 11:36 am
Posts: 1025
Location: ID
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Ahh I did notice my lifters were *really* noisy after I was out and about boosting  So noisy that I checked my oil to see if it was low. That could be the problem.
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Alan
1990 200q - 034 EFI stage 1B Parting now
1990 CQ - 3b swap in progress
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RallyDogRacing
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Post subject: Posted: Sun Dec 19, 2004 10:48 pm |
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| kickin' tires'n lightin fires |
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Joined: Sun Mar 28, 2004 6:52 pm
Posts: 724
Location: Houston, TX
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If you've got the CEL, then just use the fuse in the FP relay. It worked on my car...
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Rob Dupree
2013 Porsche Carrera S PDK - [un-named]
2007 VW Touareg V10 TDI - 'Hank the Tank'
1984 Audi Ur Quattro - "lil'Red-T'matr"
1987 Audi 4k 20vT Q Racer - 'Lava Machine'
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