m52 swap, engine cutting out

[m52swap]

i have had my 1989 325i for about 5 months and have had minimal problems for a car with a motor swap.

the problem persisting now is: when i drive over 60 mph, or rpms are over 3k for an extended period of time (60 seconds approx.) my car limits rpm's at 3500. i now can not exceed 3500 rpm's in any gear until i turn off the car and unplug the batery, which resets everything.. ECU DME etc. the car runs fine again until i reach 60 mph for about a minute then the problem persists again. i imagine this is electrical and something related to the dme or computer.. i checked all wiring everything looks good. any suggestions?

[nando]

VSS connected to the ECU?

[m52swap]

vehicle speed sensor? im not sure, i didnt perform the swap and im not exactly sure what he did, things are not in the correct places, how can i find out?

[Kershaw]

you need to talk to the guy that did the swap.

if you paid him, it looks like he still has some work to do.

[nando]

you can check yourself pretty easily, just pull back the boots on the C101 connectors (engine harness and chassis side). See if pin #14 (black/white wire) is connected or not.