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m40 still not reving

Posted: Mon Mar 15, 2010 4:28 pm
by _bmw_316_lad_
replaced the camshaft and followers and its still not reving flat out :cry: pops limiter when its slightly coldesh just off running temp but once she up to normal temp it just splutters and dies and 4k :evil: its getting annoying after the money i spent :? tanks for info. Aran

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:38 pm
by kam-325i
what engine is it ?

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:40 pm
by _bmw_316_lad_
m40 1.6 injection the later one.1989

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:40 pm
by Ziggy
Wouldn't expect so, but does it have a cat fitted? Could be something silly like an exhaust restriction anyway!

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:40 pm
by _bmw_316_lad_
Ziggy wrote:Does it have a cat fitted?
no cat fitted only near enough a straight through exhaust lol

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:41 pm
by Ziggy
Edited my post after I saw your post about the year of the car! :mad:

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:42 pm
by _bmw_316_lad_
funny tin is wen i had old camshft fitted it dine the same tin. no diff. i well well annoyed :mad:

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:44 pm
by kam-325i
_bmw_316_lad_ wrote:funny tin is wen i had old camshft fitted it dine the same tin. no diff. i well well annoyed :mad:
Someone translate please !!!!!!

check for a split in the hose from the airbox....

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:47 pm
by _bmw_316_lad_
haha sorry. i mean its still having the same problem as before i fitted the new cam. checked for air leaks all over and none. could it have some ting to do with any sensors or anything?

Re: m40 still not reving

Posted: Mon Mar 15, 2010 4:50 pm
by kam-325i
when it dies, is it like an "rev limiter" dieing or more of a spluttering kinda dieing ?

Re: m40 still not reving

Posted: Mon Mar 15, 2010 5:00 pm
by _bmw_316_lad_
like a rev limiter, once it hits around 4k it does it. so if i leave off the throttle then back to idle, it splutters for a few seconds then back to running normal , you rev up to the 4k once again and same tin happens.?

Re: m40 still not reving

Posted: Mon Mar 15, 2010 8:32 pm
by mt1104
have you checked someone hasn't put an ebay chip in in the ecu?

Re: m40 still not reving

Posted: Mon Mar 15, 2010 9:02 pm
by _bmw_316_lad_
i havent but iv had the car for the last 4 years and its past owners wouldnt bother chipping i dont think as it as a completly standered car