Switching off after Rev

[Mohammed_A]

On my first startup of my s50b32, the car idles fine, smooth, only problem im having is when i blip the throttle or rev it a bit, the motor drops the idle and switches off.
Any ideas on what it could be?
Does the DME need some time to set ?

[OrganicMechanic]

what chart did you use to wire? Post Link

[Mohammed_A]

because my car is the old chrome bumper model the wiring was a bit different so someone made a diagram up for me. Was checking again yesterday, the car idles and stays on if rev is normal, its when a light throttle is applied is when it sort of floods the engine and switches off...

[OrganicMechanic]

O2 backfeeding HFM.

use a relay to isolate pins 13-13 from each other.

[Mohammed_A]

O2 backfeeding HFM.

use a relay to isolate pins 13-13 from each other.

im not entirely sure what u mean but would love to find out, please explain as well as how i should go about isolating those pins and why...

Thanks
btw. took it out for the first test drive, its impossible to drive, floods and just switches off,found out another thing, it gets a LITTLE better if i unplug the MAF ...

[SamE30e]

You and I are having the same problem. Unplug your o2 and it will run in open loop.

[OrganicMechanic]

I wonder if there is a ground hooked up as a postitive in harness--possibility at starter. Need to reference ETM - ground distribution chart.

[Mohammed_A]

You and I are having the same problem. Unplug your o2 and it will run in open loop.

the South african M3 motors dont come with o2 sensors.....

[gobuffs]

the South african M3 motors dont come with o2 sensors.....

Not true.

[jogfrogjog]

O2 backfeeding HFM.

use a relay to isolate pins 13-13 from each other.

if he has crome bumpers, then it's likely that he has an early model e30 83-86 that has the square connector for the wiring harness, if that's the case then his body side connector doesn't have the 13 pin and instead it would have to do something like this...

http://www.e30tech.com/forum/showthread.php?t=65194

[Mohammed_A]

Not true.

my mistake.the 3.0 did not come with the o2, the 3.2 did but with the siemens dme and double vanos, im using single vanos and the 3.0 harness so no o2 sensors...