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I had to diagnose an issue with said brain on a car from 1982. Previous owners could not figure out the issue. The car's engine would rev "bounce" at idle like
by winrid 5y ago
I had to diagnose an issue with said brain on a car from 1982.
Previous owners could not figure out the issue. The car's engine would rev "bounce" at idle like it had a big cam, but it didn't go away when driving, making driving not very fun. So I got the Scirocco for dirt cheap.
I realized on day that if you opened and closed the hood a couple times, the issue would fix it self, and it was very repeatable.
I realized the computer is mounted next to the hood hinge!
I got lucky and just blindly resoldering all the joints in the computer fixed it.
We later swapped that 400k mile motor setup to a modern turbo motor with a sequential gearbox, and it's a rally car now. :)
(not super important to story but the "ECU" from 1982 was a bit more modern, Jetronic as it was called was "only" roughly the size of a few old TI-82s).
- drewzero1 5y agoI love the K-Jetronic mechanical injection system in my '83 SAAB -- only because I've never had to mess with it very much. Plus, unlike a lot of the more obscure things on that car, the K-Jet system was also used on VWs, Porsches, and Mercedes, so there's a lot of info out there. A lot of this article rings true for cars I've had (and some I still have) but I tend toward cars that are simpler mechanically and tend to fail more fundamentally: the keys all lock fine but the suspension mounts all rust out. This year has been an exercise in chasing leaks (gas, brake fluid, coolant, and now ATF) between my two daily classics. All I need is power steering fluid and I can complete the whole set!