Well, had my '74 with D-Jet out today, noticed some hesitation, drove OK for 1/2 hour. Stopped for lunch, re-started and got bad hesitation/bucking above 1000 rpm, couldn't get above 10 mph, couldn't drive further. I also have a Crane electronic ignition, problem could be there I suppose. Wondering if there are things I should look at within the D-jet system. I will check all the connectors, look at the pulse generator points (understand you can't do much with them except replace them), fuel pressure, etc. Thanks in advance for any help.
D-Jet problem, maybe
- Thread starter bill
- Start date
Check your connections....
Could be your distributor has worn out after 44 years & the curve is out of whack & not advancing properly.
My D-Jet Csi had A Crane ignition when I purchased it. I removed that & put in a Pertronix, & the car would run for 30 minutes then stall & not restart easily. Then threw out the Pertronix & went to points & condenser. Which cured the stalling issue. In 2016 installed a 123 Distributor. Then the car wouldn't idle. The root cause was a failed Manifold Atmospheric Pressure Sensor (MAP) which sits on the brake booster bracket & is color coded to the ECU. We had that rebuilt & combined with this 123 D-Jet Distributor: https://123ignitionusa.com/123-bmw-...-6-cyl-bmw-engines-with-d-jetronic-injection/ solved the hesitation, stalling & hard restarts. Th car has run flawlessly since 2016 & has been driven cross country twice.
My D-Jet Csi had A Crane ignition when I purchased it. I removed that & put in a Pertronix, & the car would run for 30 minutes then stall & not restart easily. Then threw out the Pertronix & went to points & condenser. Which cured the stalling issue. In 2016 installed a 123 Distributor. Then the car wouldn't idle. The root cause was a failed Manifold Atmospheric Pressure Sensor (MAP) which sits on the brake booster bracket & is color coded to the ECU. We had that rebuilt & combined with this 123 D-Jet Distributor: https://123ignitionusa.com/123-bmw-...-6-cyl-bmw-engines-with-d-jetronic-injection/ solved the hesitation, stalling & hard restarts. Th car has run flawlessly since 2016 & has been driven cross country twice.