Hi there as some of you may know I prevent ly purchased a e30 with a m52b28 in it. My question is why does it hit the limiter at 5700 revs as this seems to be pretty low. What way will I Beable to change this? Would I need to chip the ecu?
Cheers alan
Rev range
Moderator: martauto
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kam-325i
- E30 Zone Team Member
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At the Rev limit, Does it........
A, Bounce Regular
B, Stay Stable @ 5700
C, Splutter
A, Bounce Regular
B, Stay Stable @ 5700
C, Splutter
Pete don't care about colour, He would shag a rainbow if he could find the end of it....
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kam-325i
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Has it got a standard ECU fitted ?
Pete don't care about colour, He would shag a rainbow if he could find the end of it....
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Rancid
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Does the m52b28 have a "limp home" mode that could be causing that?
Formerly known as Rancido64.
e30less at present, working on that one....
-> Xbox360 Halo freak, GT: a wild Rancid
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e30less at present, working on that one....
-> Xbox360 Halo freak, GT: a wild Rancid
Mobile Phone Technical Support:
Got a problem with your mobile phone?
PM me and I'll do my best to help
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kam-325i
- E30 Zone Team Member
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Most "limp home" modes limit to around 3000rpm.Rancid wrote:Does the m52b28 have a "limp home" mode that could be causing that?
Pete don't care about colour, He would shag a rainbow if he could find the end of it....
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leeparkes
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M52 limp mode is around 5.5K.
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place..
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ajay
- E30 Zone Camper
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Sounds like your ecu is not reciving a road speed signal, the effect is the exact symptoms you describe. Def worth checking, i forget the exact pin/ cable but im sure some on here could help.
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kam-325i
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Really ???leeparkes wrote:M52 limp mode is around 5.5K.
Pete don't care about colour, He would shag a rainbow if he could find the end of it....
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alangorst
- E30 Zone Newbie
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would the road speed signal be received from the front left hub by any chance? as ive got the front suspension in pieces the now and there is a cable there but it wasnt attached to anything :/ and didnt seem to have any where to plug into 
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alangorst
- E30 Zone Newbie
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yeah its the standard seimens ecu as far as i knowkam-325i wrote:Has it got a standard ECU fitted ?
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ajay
- E30 Zone Camper
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Best bet is to get the fault codes read and see what comes up and take it from there.
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alangorst
- E30 Zone Newbie
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Okay thanks for the help on this lads....does anyone know of anyone one on here based in Scotland that knows a good bit on the m52b28 conversions that I could to look the car over when I have it on road to check all is correct with it?
Cheers
Cheers