Revs at idle.

Post Tue Sep 12, 2006 8:05 am

What rev should a 325i be showing at tickover(idle). Know there is a download on here but for some reason it wont open for me.

Post Tue Sep 12, 2006 9:29 am

600 - 650

Post Tue Sep 12, 2006 12:09 pm

Cheers Zaust, mines running at 1000, got a feeling ive disconected something somewhere and this is affecting the car running cold.Will take a look tonight.

Post Tue Sep 12, 2006 12:22 pm

gooner1 wrote:Cheers Zaust, mines running at 1000, got a feeling ive disconected something somewhere and this is affecting the car running cold.Will take a look tonight.

Funny mine does the same, cant figure out what's causing it. I have a spare AFM I've bought to try and see that clears it up.

Post Tue Sep 12, 2006 7:56 pm

JazzMan wrote:
gooner1 wrote:Cheers Zaust, mines running at 1000, got a feeling ive disconected something somewhere and this is affecting the car running cold.Will take a look tonight.
Funny mine does the same, cant figure out what's causing it. I have a spare AFM I've bought to try and see that clears it up.

Let me know how you get on mate will you, btw is your temp gauge normal or does it stay in the blue?.

Post Tue Sep 12, 2006 7:59 pm

should a 325i be around 850 @ idle ?

Post Tue Sep 12, 2006 8:18 pm

No disrespect Zaust and Kam but can anyone confirm what it should be, not that it makes to much difference as it sounds like mine is def too high.

Post Tue Sep 12, 2006 8:38 pm

Found it.......

Should be 760 +/-40 rpm

Post Tue Sep 12, 2006 8:44 pm

Thanks ,even with the+40 mines high.

Post Tue Sep 12, 2006 8:55 pm

some after market chips will increase the idle to around 900 ish
irc

Post Tue Sep 12, 2006 8:59 pm

It very by car. All my 325i's idle differently. I wouldnt be bothered if it idled at 1000rpm. My sport is at 800rpm, my last tech 1 was 1000rpm as was my 320i

Post Tue Sep 12, 2006 9:02 pm

massive wrote:It very by car. All my 325i's idle differently. I wouldnt be bothered if it idled at 1000rpm. My sport is at 800rpm, my last tech 1 was 1000rpm as was my 320i

Idle speed is programmed into the ECU, and on a standard car it should be well within spec. Any different, and there's a fault.

Post Tue Sep 12, 2006 9:42 pm

Brianmoooore wrote:
massive wrote:It very by car. All my 325i's idle differently. I wouldnt be bothered if it idled at 1000rpm. My sport is at 800rpm, my last tech 1 was 1000rpm as was my 320i
Idle speed is programmed into the ECU, and on a standard car it should be well within spec. Any different, and there's a fault.

Thanks Brian, thats exactly why i posted and why i want to sort it.AFAIK there isnt a chip added and i want it running exactly how its supposed too.

Post Tue Sep 12, 2006 10:16 pm

Check your throttle position switch is working properly as a first step. If this doesn't tell the ECU that it's supposed to be idling, then it won't.

Post Tue Sep 12, 2006 10:39 pm

gooner1 wrote:
JazzMan wrote:
gooner1 wrote:Cheers Zaust, mines running at 1000, got a feeling ive disconected something somewhere and this is affecting the car running cold.Will take a look tonight.
Funny mine does the same, cant figure out what's causing it. I have a spare AFM I've bought to try and see that clears it up.
Let me know how you get on mate will you, btw is your temp gauge normal or does it stay in the blue?.

It had a tendancy to stay at 1/4 an not go much higher. I've replaced the blue sensor, cleaned everything up (IVC/AFM), replaced the throttle body with a BBTB so the switch should be fine on there, check for vacuum leaks and replaced various hoses. I've not gotten around to doing a full check of the electrics yet but its on the list just as soon as I get the exhaust finished so I can run it without fear of an ASBO from the neighbours :lol:

Post Wed Sep 13, 2006 12:47 am

Anywhere on the gauge is fine as long as it's clear of the blue and red sections. The gauge is not linear - the whole centre section just covers a few degrees.

Post Wed Sep 13, 2006 6:28 am

isn't the idle speed different for manual and auto cars (as brian said dictated by the ECU), thought the slush box idles a bit higher to compesate for losses in the torque converter? (and therefore the only reason to swap the ECU when converting from auto to manual??)

mrlee

Post Wed Sep 13, 2006 4:33 pm

Right, while the guru's are about

Mine (manual 325i facelift) Idles at 1000 for a minute or two at start up in the mornings and then settles down to the 700 ish level. Does this initial high idle indicate a problem??

Post Wed Sep 13, 2006 5:58 pm

Wiggy wrote:Right, while the guru's are about

Mine (manual 325i facelift) Idles at 1000 for a minute or two at start up in the mornings and then settles down to the 700 ish level. Does this initial high idle indicate a problem??

Does it intermitantly do this at juctions for example? My old 325i did that also.

Post Wed Sep 13, 2006 7:59 pm

Seems as if it is the TPS, moved butterfly on throttle body and no click(s) but got a throttle body couple of months earlier that i was intending to polish up and that clicks very clearly.Just got to work out how to connect it
as its a later type and a bit different to the one on car. Do you reckon all the work i carried out ,timing belt ,water pump etc caused this, cos car ran sweet as after initial run

Post Wed Sep 13, 2006 8:10 pm

gooner1 wrote:. Do you reckon all the work i carried out ,timing belt ,water pump etc caused this,

Not the direct cause,no. It's a simple fact of life that E30 TPS's, positioned as they are, need cleaning out from time to time. They also suffer from people "adjusting the idle stop"

Post Wed Sep 13, 2006 8:16 pm

im having idle problems on a 2.7 ive just fitted it was dieing when i had to bring the car to a stop so i have had to adjust the throttle stop screw so far it no longer activates the switch.is there a way totest the switch before i go to the trouble of replacing it.(it was clicking but does that mean it was working?)

its going for a remap and set up on saturday so im hoping this will solve the problem

Post Wed Sep 13, 2006 9:15 pm

Just a thought, can i swap the switch from the later type TB ive got onto the TB thats on the car.

Post Wed Sep 13, 2006 9:20 pm

swap the whole t/b, they are the same

Post Wed Sep 13, 2006 9:22 pm

beardymat wrote: so i have had to adjust the throttle stop screw so far it no longer activates the switch.

ooooh, Brianmooore will not be happy with you!!

Post Wed Sep 13, 2006 9:32 pm

massive wrote:swap the whole t/b, they are the same

Err not quite mate,connections are in different places altogether.Can be sorted but just being lazy.

Post Wed Sep 13, 2006 9:52 pm

Bugger,just looked on RealOEM and looks like the electical connection on switch itself is different shape to the early type, i fcukin hate electrics, no offence Brian.

Post Thu Sep 14, 2006 8:32 am

massive wrote:
beardymat wrote: so i have had to adjust the throttle stop screw so far it no longer activates the switch.
ooooh, Brianmooore will not be happy with you!!

tell me about it, i was hoping for some enlightenment from him as to where to look for the cause of the problem so i can fix it rather than masking it.