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update on JBo's car (ex-PzKW Kommandant and Milpitas2.7T,you guys read)

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Old Feb 8, 2004 | 05:50 AM
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Default update on JBo's car (ex-PzKW Kommandant and Milpitas2.7T,you guys read)

RobYSo drove to Allentown,Pa from NYC to try his ecu in Jeff's car which I think was a great thing for Rob to do.(Rob, hope you made it home safe and wife wasn't too mad for you being late : ) )

1st thing we noticed that was weird is Jeff's car has an A box and Rob's has a K box. Even though Jeff's car is older then Rob's by 3 months he has a newer ecu(this is confusing).

Rob's ecu didn't work in Jeff's car(didn't think it would), but we unhooked the maf, and took Jeff's car for a ride, and no more throttle cut. Does this mean his maf is bad? Is there a way to test the maf with vag tool? Rob thought of it as we were leaving, that we should have put a maf from his car, or mine, in Jeff's car to try(D.oh).

Jeff's car has multiple reccuring codes.16805/16815(both banks 1 and 2) warmup catalyst effieiency below threshold(I think this means his pre-cats are not working properly).<JEFF CHECK THIS 2 OTHER CODES>17887 brake vacuum system mechanical malfunction(which has something to do with automatics) and 17965 Charge Pressure Control Positive Deviation(which I believe is caused by his car surging/he gets 500 or 600 mbars more boost then requested)

Jeff is going to run some logs for 002,003,115 with maf unhooked today but is there anything else he should do?
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Old Feb 8, 2004 | 06:47 AM
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Default Re: update on JBo's car (ex-PzKW Kommandant and Milpitas2.7T,you guys read)

With the MAF disconnected the car will run off lookup tables in a limp like mode.Not a real limp, but not full power. You can run a log of the MAF with VAG. If there is a problem it will show up.THe converter effeciency is interesting. If the A/F mix is way off it could have killed the converters either by melting or poisoning. I thing the vacuum signal to the booster has a problem, but this could be related to the converters. If they are melted it will cause excessive backpresssure and poor vacuum. Could be a broken hose too. The charge deviation, well we've been fighting that on from the start.
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Old Feb 9, 2004 | 03:31 AM
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Default ygm, Jeff sent me logs and i forwarded them to you

they look pretty crappy, he gets surging and throttle cut even with the maf unhooked but the car actually felt pretty good when Rob,Jeff and I went for a ride in it
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Old Feb 9, 2004 | 06:06 AM
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Default It was nice meeting you and JBo. I made pretty good time getting home (picked up dinner) and I tell

you, women- they can be so impatient when it comes to food. Especially expecting mothers. =)

Hopefully, we can get his car sorted out. You already know what I think he should do.
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Old Feb 16, 2004 | 06:30 PM
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Default Hey shtaes and RobYSo - really appreciate you coming over...

glad you both made it back OK and it was really informative. I have already sent my logs to Milpitas2.7T to see what he comes up with. As soon as he emails me, will let all of you know.
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Old Feb 17, 2004 | 06:41 AM
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Default I sent shtaes my thoughts on you logs. I think you have massive overboost

2.1 bar is WAAYY to much.
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