Hi all - a few years ago, bored of the constant issues with K-Jetronic and chasing a positive ground in the electrics somewhere, I had my 1.9 converted to Motronic ignition.   Since then, it has bared scraped past a number of MOTs on emissions, and fuel consumption has been markedly worse. It does start and idle beautifully, not hunting around for revs, and solved the problem I had where it would die once it began to warm up (but was fine once actually warm). It now can't pass an MOT.   For the last year my car has been with a classic garage near me, who work on a lot of different stuff, but have experience with 80s and 90s ignition systems. They have determined that the ECU is telling the injectors to fire fuel for 5 milliseconds instead of 2.5, hence unburnt fuel in the exhaust, and why it can't pass an MOT. They've sent the Motronic ECU to a specialist, who confirmed it was working as it should. We've tried another one, same thing. Seems that it just isn't compatible with the standard 205 8v engine (cam profile?), so he wants to put it back on K-Jetronic. I thought I had all the parts, but the boxes I provided to him don't seem to have the actual ECU or wiring harness.   Just wondering if anyone else has had a similar issue having done this conversion (from a ZX Volcane), and if there's an easier way to fix this than going back to the old K-Jet and distributor etc.