2000 S4 tip with APR 93 program

Recently my CEL came on. Codes were 1128 1130. Lean fuel on right and left bank. I thought it was due to 92 octane accidently put in. Code cleared and light came back on.

I am wondering if I have a vacuum leak after I installed my boost gauge.


Any other suggestions ?

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Do not underestimate the power of the DarkSide

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Could be your MAF, BPV or vacuum.

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2004 VW Touareg
2005.5 Audi A4
1997 Audi A4

BPV are new.

How can I test vacuum or MAF ??


Thanks

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Do not underestimate the power of the DarkSide

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I'd start by picking up a couple feet of vacuum line and replacing all that you can. The factory stuff gets brittle and cracks very easily. How much boost does your gauge say you are getting?

Here's an article to read.

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2004 VW Touareg
2005.5 Audi A4
1997 Audi A4

Thanks for the info. Boost is between 15-17 psi, vacuum is 20.

I believe it is the MAF, beside the Stealership, where is a place I can buy this. None of the local shops can get it

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Do not underestimate the power of the DarkSide

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I just bought a used one from an auto dismantler. I found them on www.car-parts.com. Think I paid 40 bucks for the maf. The dealer also sells a remanufactured MAF for like 80 bucks I believe.

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2004 VW Touareg
2005.5 Audi A4
1997 Audi A4

Thanks, I went over to AudiWorld and looked up the procedure on how to clean the MAF. So far the CEL has stayed off.

__________________
Do not underestimate the power of the DarkSide

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