My M42 seems to be pretty healthy, but when I get too close to redline/actually at redline to shift, the car doesn't hit it's rev limiter, it instead begins to sputter and have basically no power until I put the clutch in and wait for it to idle. It's fine after that, but does anyone know why this is happening?
Announcement
Collapse
No announcement yet.
Revving the M42 to it's redline, then boom stuttering/sputtering
Collapse
X
-
Originally posted by e30davie View PostCould be anything, but i would start by inspecting the spark plugs and the fuel filter (replace both if you dont know the history)
Could it be something to do with the engine ground or a camshaft sensor?91 318iS - aluminum M52B28 + ZF320 + 3.15 Torsen
Comment
-
crank sensor maybe89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
Comment
-
Originally posted by bmwman91 View PostWhat RPM exactly, and is it very consistent or intermittent?
Originally posted by digger View Postcrank sensor maybe91 318iS - aluminum M52B28 + ZF320 + 3.15 Torsen
Comment
-
Revving the M42 to it's redline, then boom stuttering/sputtering
CPS most likely. Had to replace mine 2x, once with aftermarket and finally with OEM. Hasn’t done it since. Exact same symptoms as the video. OEM was fuck-all expensive iirc.
Ezekiel 25:17Current flame: E30 318iS Alpinweiss II slicktop / LSD - Joanne
The old man: 1970 2002 Polaris(ish) slicktop / rat rod - Wallace
The ex: E92 335i 6MT M-Sport - Betty
The heavy: 2001 4Runner SR5 Sport (3rd Gen) - Fred
Comment
-
majmodo I agree 100% on that.. I also got the Bosch part first and my car was no-start whatsoever after that. Once I got the OEM it was 100% back to normal. Unfortunately it has jumped in price, but if you want good reliable performance from your car it's necessary. Worth it for these great old cars.
CPS on ecs 19Mar2019: $232
Last edited by Nairb; 03-19-2019, 08:13 AM.
Comment
-
Originally posted by Nairb View Postmajmodo I agree 100% on that.. I also got the Bosch part first and my car was no-start whatsoever after that. Once I got the OEM it was 100% back to normal. Unfortunately it has jumped in price, but if you want good reliable performance from your car it's necessary. Worth it for these great old cars.
CPS on ecs 19Mar2019: $232
https://www.ecstuning.com/b-genuine-...r/12141721504/
Right on - wish I’d done this repair myself, but ended up paying the mechanic to hunt down the problem. Almost paid him to replace a perfectly functioning cat, thought it was a blockage in the exhaust.
Ezekiel 25:17Current flame: E30 318iS Alpinweiss II slicktop / LSD - Joanne
The old man: 1970 2002 Polaris(ish) slicktop / rat rod - Wallace
The ex: E92 335i 6MT M-Sport - Betty
The heavy: 2001 4Runner SR5 Sport (3rd Gen) - Fred
Comment
Comment