Quote:
Originally Posted by mbzr4ever
 So I've been working on the 240D and the Ford in between, but while waiting for parts, decided to drive the 300E again.
I stopped at the point of changing the O2 sensor, debating if I should just clean it or replace it - but now I have a new issue:
The check engine light is off, but the ABS light is ON!
Hard to start, idles very, very rough, sometimes almost dies or dies.
***Weird, before it was revving too high, now too low***** |
The abs system is powered throughout the OVP relay. It is a silver relay with a red top located behind your battery. It usually has 1 fuse on top, or 2. Sometimes the whole relay goes bad (bad solder joints) and must be replaced. It typically causes the abs light, and shuts down the "E" part in you "cis-e" fuel system.
CIS-E stands for continuous injection system, electronic assist. The electronic stuff really does work at keeping idle.