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Old 04-19-2019, 03:38 PM   #1
Agueritz
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Supercharged 330i with P1500 error code

We have fitted an Asa supercharger kit (an eBay find) to our 2002 e46 330i and have had it mapped on the ECU (threw away the old Asatronic box). The supercharger is working fine but the car is throwing a P1500 code and the trifecta lights (EML DSC BRAKE). We replaced the ICV but the code remains.
The car had problems with the trifecta lights before we fitted the supercharger mainly when it was very hot after a thrash round the track on a track day. But now it happens all the time (within a mile or even on a brief dyno run). The lights do not appear if we disconnect the MAF, however the car is not mapped Mafless do not safe to run it that way.
So really just wondering if there is anything that we should check / replace to solve the problem
Thanks
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Old 04-19-2019, 03:43 PM   #2
Kalib
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Did you clean the idle control valve?

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Old 04-19-2019, 04:05 PM   #3
Agueritz
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No, replaced instead so it is now a new part
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Old 04-20-2019, 04:29 AM   #4
Mon_Spain
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I think that it is de maf.
Can you know the fuel trims?
If these were very negative, the problem woul be the maf

Last edited by Mon_Spain; 04-20-2019 at 04:31 AM.
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Old 04-20-2019, 06:37 AM   #5
Agueritz
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The long term trims seem to be fixed at zero but the short term go down to -28% above about 2500rpm
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Old 04-20-2019, 10:16 AM   #6
armenh7
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Clear adaptations using inpa and post this in the general forum
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Old 04-20-2019, 11:12 AM   #7
Mon_Spain
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Model: 325ci e46 Sleeper
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Quote:
Originally Posted by Agueritz View Post
The long term trims seem to be fixed at zero but the short term go down to -28% above about 2500rpm
With these values if I were you, would try mount one maf before buy a new. But it is very probabily that the maf will be the problem

Last edited by Mon_Spain; 04-20-2019 at 11:14 AM.
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Old 04-29-2019, 04:21 AM   #8
Kalib
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Wait quick questions. What power and torque output you running? Is the aluminium block still ok and what's your fuel efficiency?

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Old 04-29-2019, 11:31 AM   #9
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Best dyno figures (without error codes) are 319bhp and 352Nm. Haven't got any mpg figures
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Old 04-29-2019, 11:33 AM   #10
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Cleared the throttle adaptation and the lights went away for a little while then came back as before. The DSC is also reporting a 5E19 (torque could not be controlled error)
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Old 05-08-2019, 02:31 AM   #11
stefm5
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Quote:
Originally Posted by Agueritz View Post
The long term trims seem to be fixed at zero but the short term go down to -28% above about 2500rpm
as a first step correct your fuel trims.
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