3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
I am restoring Euro E30 2.3 Auto sedan. I have two issues I canít locate P/N 184.108.40.2069.882 and I have a problem were the engine loses power and canít rev over 1500rpm. Engine idles perfectly when it is happening. When the problem is not there it drives perfect. I have replaced TPS sensor, fuel pump, fuel pressure regulator, serviced the distributor, new spark plugs, ignition wires. EtcÖ need some guidance please.
Check and clean all your grounding points and relays as a start. A dirty or loose ground can do weird things to vehicles. I just found a loose ground in my trunk, reattached it, and it doesn't have the weird idle it used to have, almost like driving a different car now. Does this happen all the time, periodically, once in a blue moon...?
I appreciate your quick response to my annoying anomaly. It happens periodically, especial when I drive it hard. It really happens when it wants to. But when it happens I lose power but it does not shut off and it idles perfect. Only when I give some gas it sputters. Where are the grounding points located on this VIN # 0515432. Thanks.
I clean the sensor plate on the MAF and made sure it was responding to adjustments as well, which it did. Is there any other way of checking other than replacing it? I have checked all vacuum hoses with induction cleaner to see if there was any fluctuation in the idle. I see no problem there. Thanks for the information regardless. I am stuck….
When the problem accrued on one occasion, I unplugged the MAF connection to test it and the engine stalled. Don’t forget that the vehicle runs smooth with no issues most of the time. When it starts, I feel it coming, first at a higher rpm, then it starts losing power and I can’t rev it more than 1500rpm. Does not matter what I do it sputters but never shuts off. I eventually get it home or to a safe area and park it for a few hours or overnight and then it drives perfect after. I used to think it only happens when the vehicle is at normal operation temp, I was wrong, It has happened in the morning as well. The biggest problem is, when it’s at the garage and the mechanic looks at it, it never happens. HELP!
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