maddog2020 wrote: ↑Wed Nov 17, 2021 6:21 pm looks to be a very well put together kit. My only concerns would be plugging it into a 35 year old wiring harness. the 928 FI harnesses from the S4 and later are really well made, and I've cut apart 4-5 of them. As long as no one ever got into them you should be good. FOE harnesses are not nearly as indestructible.Agree fir sure.
Hey_Allen wrote: ↑Thu Nov 18, 2021 4:53 pm That's a great reference book to dig into. The authors have a good bit of EFI tuning experience, Matt Cramer being one of the people behind DIY Autotune, and Jerry Hoffman is their CEO.Hey thank you for the link, that is a good resource!
I bought a copy when it first released, as I'd been planning to Megasquirt swap my CIS injected MB 500 SEC (that was rear-ended just before getting all the bits installed...)
Huge amounts of info on MSExtra as well, but much of it is MS focused, even though much is also applicable to EFI tuning in general.
grepin wrote: ↑Tue Nov 23, 2021 5:34 pm I have a VEMS installed on my 1984 928S. I wont say I am an expert at the tuning side but I got it all running with no real issue. To connect I think the code was 9111 (check that) then go into ECU and select the com ports until it works. Mine is com port 3.Grepin!
Yep calibrate the throttle position and WB02 sensor. There are youtubes on it. One thing that had me confused was that the TPS calibrated backwards. High figure was low and low figure was high IAW the instructions. But it didnt matter. VEMS actually also tells you how to do it when you go into the calibration menu. The beauty is other vems users can share logs and setups easily and you can upload it on your computer or laptop and watch it play back. If yours is supercharged your map will have a larger range than mine so interchangeability wont work. Anyway good luck. Dont hesitate to ask any questions. As I said I am not expert and limited up to a point. However I have been road tuning and think I am nearly sorted.
hans14914 wrote: ↑Mon Nov 29, 2021 4:38 pm If you decide to make a sub-loom for COP, I have distributor blanking plates and there is a mount for Cam Position Sensor on the driver side. You could then do some knock windowing on the ignition. I also have boots to run the VAG 2.0T coils on the stock valve covers.That sounds incredible, thanks Hans.
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