TPS and overboost problems

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01-03-2012 | 12:24 AM

pman

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TPS and overboost problems

I have a 1990 miata with a 96 motor. The turbo is a gt2560r. I did the tpsmod on my magasqurit and I getting a bad signal in tunerstudio. I've truest tuning the car with just kpa, now I have a overboost problem. The turbo has a integrated 8lb wastegate and I'm seeing 15 lbs at full throttle

01-03-2012 | 10:56 AM

Matt Cramer

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Please post a data log of the problem and a copy or your MSQ.

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01-03-2012 | 02:05 PM

pman

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I'll post it later tonight

01-03-2012 | 10:40 PM

zvonkorp

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datalog

here's our last datalogs with this car

Attached Files

2011-12-30_19.44.52.msl (443.4 KB, 153 views)

2011-12-30_20.12.04.msl (275.6 KB, 153 views)

CurrentTune.msq (36.5 KB, 185 views)

01-04-2012 | 10:12 AM

Matt Cramer

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The data log does not show more than around 5 psi of boost. I need a data log that shows the overboost problem.

The TPS looks like it may not be installed correctly; I'd test its output with a voltmeter.

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