OT-E30 Question

[Victor_PR]

Hi;

My '87 325 (automatic) hesitates when cold and at times when I need the power in the express way.

I've seen posts on a E30 board with the same problem and they suggest the culprit could be the C191plug (dirty) and/or the potentiometer of the AFM?

Where are these parts located so I can check?

TIA

Victor

PD: I posted asking this but I haven't received any answer yet.

[ahlem]

Check your fuel pressure and for vacuum leaks before you get too far into things. See realoem.com for parts locations.

[instructorbill]

the AFM is the Air-Flow meter. It is located on the air box inboard of the filter... the ribbed alluminum box with the arc on the top and a black cover. on the side Read up on testing the AFM

The C191 plug is the fuel injection harness plug.

[Chris_B]

I couldn't tell from your post whether this problem only occurs when the motor is cold. A defective throttle position sensor (switch) can cause a problem like this; a defective switch is a bit more noticeable when the motor is cold.

[scottt]

Cuz it's cheap and easy. If that doesn't help, the FI harness plug is on the drivers side of the engine, directl below the throttle body. Usually, the gasket on the small coolant housing on the side of the throttle body leaks. The coolant drips right on the connector and corrodes the contacts.

But if it is only when cold, that temp sensor is a good bet.

[instructorbill]

crap... said what a c191 is but didn't say where it was