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Wednesday, May 03, 2006

The full horror of KH Freescan log

Data file from KH revealed some tales of gore..!!!

Ugly details below.. Look away.. look away...

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1. inlet air temp were very high, actually they reached 90 deg C that is as high as I have ever seen, you have basically no chargecooler.

2. massive engine detonation problems, the knock sensor
detected about 1000 knocks in your log file. The ECU attempted to
save your engine fro holing a piston by applying the maximum spark
retard of 4 deg, it also probably cut the boost.

3. no evidence that your ECU has control of your boost, the
wastegate boost solenoid is all over the place, meaning no control.

4. The secondary injectors are NOT being triggered.

5. There is no long temp fuel trim, the BLM values are locked down so the ECU is not learning the best fuel setup.

6. engine is getting dangerously lean at the top end. The O2 voltage is nearly at crossover at 6000rpm which means that is close to A/F 14.7. At this A/F your will have massive EGR values and will be about to melt pistons !!!

7. weird MAP output, the idle value is wrong but it might be 3bar, it might not if so you are getting about 0.7 bar boost, which makes sense if the ECU has no control.

8. The TPS has some play in it, not bad but might need attention later, least of you worries at the moment.

9. IAC values are all over the place but that is also the least of your worries

The ECU is permanently in open loop mode. This means that all adaptive
tuning and feedback has been disabled. Basicaly the ECU is ignoring
all its sensors !!!! must have been deliberate in the ECU code but surely only for testing.

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