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7 Posts
A quick MAF/sluggish mode query (UPDATE)
Hi all.
I know this problem has been discussed to death, but I have only seen a brief reference to my query in one FAQ document.
If I unplug my MAF and it makes no difference to performance, does it definately mean the MAF is faulty, or could the sluggishness still be caused by something else that overrides the symptoms of a faulty MAF?
I have run some diagnostics and the MAF expected/actual plots of block 003 are sometimes close, and sometimes far apart.
I also have an intermittent error code for the fuel temp sensor (G81), this jumps between around -29 degrees and the default -5.6 degrees. I would assume it is a bad connection, and the fact that the value is usually negative is down to my cheap software (eBay cable + VWtool)? My reasoning for this is that I understand the fuel temperature at usual loads should be around the 30 mark.
Please note that the sluggishness cannot be solved by stopping and restarting the engine. It seems okay at low revs, then on motorways (highways?) it takes ages to accelerate. The EGR valve and VNT actuator seem to move plenty, and I cleaned my intake manifold the other day.
Any help would be greatly received!
Jon
Hi all.
I know this problem has been discussed to death, but I have only seen a brief reference to my query in one FAQ document.
If I unplug my MAF and it makes no difference to performance, does it definately mean the MAF is faulty, or could the sluggishness still be caused by something else that overrides the symptoms of a faulty MAF?
I have run some diagnostics and the MAF expected/actual plots of block 003 are sometimes close, and sometimes far apart.
I also have an intermittent error code for the fuel temp sensor (G81), this jumps between around -29 degrees and the default -5.6 degrees. I would assume it is a bad connection, and the fact that the value is usually negative is down to my cheap software (eBay cable + VWtool)? My reasoning for this is that I understand the fuel temperature at usual loads should be around the 30 mark.
Please note that the sluggishness cannot be solved by stopping and restarting the engine. It seems okay at low revs, then on motorways (highways?) it takes ages to accelerate. The EGR valve and VNT actuator seem to move plenty, and I cleaned my intake manifold the other day.
Any help would be greatly received!
Jon