Trying to Get IAT to PCM when MAf Disabled

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May 13, 2006 | 11:30 PM

Chalky

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From: WI

Trying to Get IAT to PCM when MAf Disabled

Car is 02 Z06 with 5 pin MAF. Going to do a SD tune with MAF disabled. Anyone know how to get IAT to PCM with MAF disabled?

May 14, 2006 | 12:14 AM

HumpinSS

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From: Waldorf, MD

Set the high and loow fail frequencies to the max and the min that will take care of it

May 14, 2006 | 12:27 AM

Chalky

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From: WI

Here is what I have so far. What parameter if any needs to be adjusted?

LABELS Selection
Parameters Value
{C2901} MAF High Frequency Fail 1 1.000000 Hz
{C2903} MAF High Frequency Fail Limit 1.000000 failures
{C2904} MAF Low Frequency Fail 1 1300.000000 Hz
{C2906} MAF Low Frequency Fail Limit 6.000000 failures
{C2907} MAF Test Min Engine Speed 400.000000 RPM
{C2908} MAF Test Min Run Time 2.000000 Seconds
{C2909} MAF Test Min Batt Voltage 8.000000 Volts
{C2910} MAF Test Max TPS 95.000000 %

May 14, 2006 | 02:34 AM

Purrvert

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From: Satellite Beach, fl

AutoTune in EFI will guide you step by step through the rest.

May 14, 2006 | 10:57 AM

Chalky

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From: WI

Question: In the EFI Tutorial, it provides info on changing the MAF fail settings. Does that mean I can leave the MAF pin plugged into the MAF? If not, how will the PCM read IAT?

May 14, 2006 | 09:55 PM

muncie21

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From: NE Ohio

Yes, leave the MAF plugged in and just adjust the fail frequency.

May 15, 2006 | 08:35 AM

billiardcue

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Quote:

Originally Posted by Chalky

Car is 02 Z06 with 5 pin MAF. Going to do a SD tune with MAF disabled. Anyone know how to get IAT to PCM with MAF disabled?

Same question as above.
According to the EFILive tutorial if the MAF has a five pin plug you must make provisions to get the IAT signal into the PCM.
The tutorial tells you to check the forums on how to do this.
http://68.178.219.18/tutorials/AutoV...20Tutorial.pdf - page 10

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May 15, 2006 | 10:53 AM

MSGHUFF

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From: Fayetteville, NC

Just a note that took me a while to figure out becouse it wasnt in the tutorial....I kept getting reduced engine power and throwing the p1514 code everytime I went above 4k I would have to shut the car off let it sit for a few seconds before it would re-start. If it does this to your car all you have to do is go to the c6101 table and multipy all values by 200% until you are done tuning everything......