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elmo0104
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Post subject: Accelerator pedal does not work in SWAP car after MAF remova  Posted: Sat Jul 01, 2017 9:34 am |
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| Newbie |
Joined: Wed Nov 16, 2016 5:41 pm
Posts: 57
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We have an issue with E36 with M54 swaped in. We need to run it in alphaN mode. When MAF is dosconected the car starts but no responce after using accelerator pedal. Inpa sees movement of pedal but engine is idling. Same situation when MAF is unmounted from intake and is connected to hernes. Anyone know what is this causing?
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georg
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Tue Aug 08, 2017 1:23 am |
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| Newbie |
Joined: Wed Apr 26, 2017 4:43 am
Posts: 98
Location: Georgia
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elmo0104 wrote: We have an issue with E36 with M54 swaped in. We need to run it in alphaN mode. When MAF is dosconected the car starts but no responce after using accelerator pedal. Inpa sees movement of pedal but engine is idling. Same situation when MAF is unmounted from intake and is connected to hernes. Anyone know what is this causing? its normal for m54 in general, though some are reported to work without maf.
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Cloudforce
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Tue Aug 08, 2017 10:15 am |
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| Experienced |
Joined: Wed Aug 27, 2014 7:57 am
Posts: 259
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georg wrote: elmo0104 wrote: We have an issue with E36 with M54 swaped in. We need to run it in alphaN mode. When MAF is dosconected the car starts but no responce after using accelerator pedal. Inpa sees movement of pedal but engine is idling. Same situation when MAF is unmounted from intake and is connected to hernes. Anyone know what is this causing? its normal for m54 in general, though some are reported to work without maf. After my surgery i will do some video footage of my car using stock alpha/n system of MS43 and revving the s*** out of it!
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Enabled
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Tue Aug 08, 2017 1:12 pm |
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| Experienced |
Joined: Thu Sep 25, 2014 12:53 pm
Posts: 627
Location: Houston, TX
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Pretty sure you need to look at c_tps_max_diag at 0x934h . Make it = to the data at 0x932h (2 bytes, 16-bit)
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georg
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Wed Aug 09, 2017 7:29 am |
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Joined: Wed Apr 26, 2017 4:43 am
Posts: 98
Location: Georgia
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Enabled wrote: data at 0x932h (2 bytes, 16-bit) its c_tps_max one of headache causes for m54 owners is possibly going to be eliminated 
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PancakeBimmer
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Mon Sep 25, 2017 8:53 pm |
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Joined: Thu Mar 10, 2016 8:48 pm
Posts: 9
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@elmo0104 Did you try what @Enabled posted, and if so how did it work out for you?
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Cloudforce
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Tue Sep 26, 2017 2:59 am |
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| Experienced |
Joined: Wed Aug 27, 2014 7:57 am
Posts: 259
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elmo0104 wrote: We have an issue with E36 with M54 swaped in. We need to run it in alphaN mode. When MAF is dosconected the car starts but no responce after using accelerator pedal. Inpa sees movement of pedal but engine is idling. Same situation when MAF is unmounted from intake and is connected to hernes. Anyone know what is this causing? Install the brake switch accordingly to the E46 wiring diagram and you get at least throttle when NOT braking.
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BMWACSCHNITZER
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Tue Dec 19, 2017 3:11 pm |
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| Newbie |
Joined: Wed Mar 23, 2016 9:39 pm
Posts: 97
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I've set c_tps_max_diag to be equal to c_tps_max but the car still doesn't revv without maf.Any suggestions? 
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Cloudforce
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Wed Dec 20, 2017 6:53 am |
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| Experienced |
Joined: Wed Aug 27, 2014 7:57 am
Posts: 259
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BMWACSCHNITZER wrote: I've set c_tps_max_diag to be equal to c_tps_max but the car still doesn't revv without maf.Any suggestions? Well, Alpha/n mod is MUCH more then just patching c_tps_max_diag (which honestly doesn´t do anything to alpha/n!). You will need a working ews unit and some $$$ if you want real alpha/n.
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BMWACSCHNITZER
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Wed Dec 20, 2017 2:33 pm |
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Joined: Wed Mar 23, 2016 9:39 pm
Posts: 97
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I don't wan't to run Alpha N,just to make the car reach my garage in case of broken MAF 
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pazi88
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Wed Dec 20, 2017 5:07 pm |
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| Senior Member |
Joined: Mon May 18, 2015 8:14 am
Posts: 1042
Location: Oulu, Finland (English/Finnish)
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BMWACSCHNITZER wrote: I don't wan't to run Alpha N,just to make the car reach my garage in case of broken MAF Well in that case you don't need to do anything. If the MAF is plugged in but just not working the car will run just fine. Of course not as well as with working MAF, but you can drive it to garage without problem.
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georg
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Post subject: Re: Accelerator pedal does not work in SWAP car after MAF re Posted: Thu Jan 04, 2018 2:47 pm |
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| Newbie |
Joined: Wed Apr 26, 2017 4:43 am
Posts: 98
Location: Georgia
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pazi88 wrote: BMWACSCHNITZER wrote: I don't wan't to run Alpha N,just to make the car reach my garage in case of broken MAF Well in that case you don't need to do anything. If the MAF is plugged in but just not working the car will run just fine. Of course not as well as with working MAF, but you can drive it to garage without problem. I'm afraid that way to garage is gonna take quite a time
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