318is

[n500chm]

hi everyone im new to the forum so don't know if im doing this right but here we go.... I have an e30 318is which has a running problem when its cold,it starts first time and ticks over as it should but when driving it wont rev much past 2500rpm until its warm,when its upto operating temp its fine and runs as it should,any ideas anyone??? thanks dave!

[blazed]

http://www.e30zone.net/e30zonewiki/inde ... n_Problems

plenty of info on here.

[Brianmoooore]

Hi; welcome to the E30zone. I've removed your duplicate thread in 'E30 chat', since it seemed to have attracted the attention and 'wit' (in their eyes) of some of the zone idiots!
In addition to anything in the link above, you probably ought to check out the 'blue' coolant temperature sensor, which is easiest done at the ECU plug inside the cabin.
Search around the wiki for more info., and post again on here if you can't find what you need.

[DHFiS]

The Wiki shows pin 78 as the coolant temp input. Is the test done between here and the body of the car?

[Brianmoooore]

Between 43 and 78 on the iS ECU plug. Pin 43 is earth, but it's connected to earth by another ECU pin and an internal link in the ECU, so when the plug is disconnected, it's no longer earthed.

[n500chm]

ok thanks,what test do I do? is it a voltage test or resistance? what readings should I get when cold or warm?thanks again.

[Grrrmachine]

All the information you need is here:

http://www.e30zone.net/e30zonewiki/inde ... or#Testing