With a dwell/tach hooked up, you can disconnect each injector connector to see the RPM change. The one that has the least change is suspect. If all are very close then you have a different issue. All these checks are with the assumption that the engine is sound. Compression is even within 10 lb. points set to spec, timing at spec.

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81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.

Have you read the post on the SL forum titled "D JET issues solved" Same engine same fuel injection system. Its about 30 posts down counting the sticky's

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81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.

just search my for my posts in the SL forum using "Djet" you will get all the info you need

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Ron
2015 Porsche Cayman - Elizabeth
2011 Porsche Cayman - Bond,James Bond
Sadly MERCEDESLESS - ALways LOOKING !
99 E320 THE Queen Mary - SOLD
62 220b - Dolly - Finally my Finny! Sadly SOLD
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
19 BMW X5 - Heaven on Wheels
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace

Replaced all fuel injector seals and did a tune up (new rotor, distributor cap) and car runs great. And my brakes are all there too!

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Sam

1972 Mercedes-Benz 280SE 4.5 "Kenyatta" **parts car(?)**

1972 Mercedes-Benz 280SE 4.5 "Arabian Grey"