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HELP - ROM 9339000 Ecuflash Problem with Idling/Tune

Old Nov 22, 2017, 05:36 AM
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HELP - ROM 9339000 Ecuflash Problem with Idling/Tune

Good day, I currently have an Evo7 engine and ecu in an Evo CP9A Evo5. The car previously had a Haltec but when bought it was taken off an the Stock JDM Evo7 Ecu was placed.

The rom used has no XML to match, so we flashed the Stock 7 Ecu using the Tactrix Cable, scaled the PTE 1000CC injectors to suit.

The car tumbles and starts but cuts off after a few seconds, can anyone give any possibilities or advice on this issue be it idle settings or manifold ideas since I have the AMS VSR intake manifold.

The rom used is the 9339000.
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Old Nov 22, 2017, 02:16 PM
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To use a 7 ecu in a 5 you need to do some wire swaps , use 90550001 rom
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Old Nov 22, 2017, 02:19 PM
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wire swaps
move pin 20 to 32
21 to 34
6 to 53

disconnect pin 87

switch off egr and immobiliser in the periphery
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Old Nov 22, 2017, 02:22 PM
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Do you have a MAF sensor/housing installed & connected? If the car had a Haltec before then I bet it ran a speed density map.
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Old Nov 23, 2017, 05:24 AM
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Would the wiring need to change because the car has a tuned map on it currently which works good however the tune is not safe and the idling is very rough.

When I try to use a stock map then the tumbling, starting and cutting off occurs now, when we switch back to the old map car idles and remains running.
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Old Nov 23, 2017, 06:53 AM
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Originally Posted by foxbat View Post
Do you have a MAF sensor/housing installed & connected? If the car had a Haltec before then I bet it ran a speed density map.
The car previously with the Haltec and currently without it runs the MAF sensor. Thanks thought for the heads up
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Old Nov 23, 2017, 06:54 AM
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Originally Posted by todd6027 View Post
To use a 7 ecu in a 5 you need to do some wire swaps , use 90550001 rom
The car has a tune on the ecu so I guess switching the wires should not be an issue. What is the reason for the wire switch though?
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Old Nov 24, 2017, 12:47 PM
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Rad fans , egr and sad solenoid swapped on 7 ecu , 87 is ayc on 7 ecu and tps idle switch on 5 ecu
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Old Dec 2, 2017, 08:59 PM
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9417 rom works fine too
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