Measuring Block 32 numbers out of spec.

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Jun 19, 2007 | 09:10 AM

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Joined: Nov 2001

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Measuring Block 32 numbers out of spec.

Hi Everyone,

I'm having the darndest time trying to pin point the cause of my car running out of spec. Currently block 32 measurements are (-1.3% to -1.7%) idle, and (-9.5% to -10.4%)partial throttle. MAF values under 2nd gear pulls are between (183 to 195). I checked for vacuum leaks and was unable to find any. I've replaced everything I can think of with little to no change in values. See below.. I'm all out of ideas. Any help would be very much appreciated.

Current setup:
2001 TT 225HP Quattro
Revo Chipped
Modshack Stage 3
-VTDA
-**** (w/ 4bar FPR)
-Boost Machine (Currently turned all the way down - passthrough mode)

Replaced components:
New MAF
New plugs
New Coil packs

-Carlo

Jun 19, 2007 | 09:18 AM

TTschwing

AudiWorld Uber User

Joined: Dec 2000

Posts: 53,281

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Got SPS3?

Maybe turn things down a little... Slightly rich at partial, but certainly withinn the normal range of correction. Those values mean the ECU IS correcting to optimum. Could be an 02 sensor starting to go as that's the watchdog that sends the info to the ECU along with the MAF. Don't chase numbers if the car is running fine. you may need an adjustable FPR to fine tune your particular situation, or freshen up the 02's...

Jun 19, 2007 | 09:50 AM

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Joined: Nov 2001

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Re: Got SPS3?

Thanks Steve. I've got an Sp2, but I'm going to have the shop turn down the revo boost values this weekend, so I can manually control the boost with the BM. We'll see if that helps.

Cheers.
Carlo