Well, here's an update on my ongoing S/C-project and sadly it isn't a good one. Why? Since I've done the conversion the engine is running so incredibly rich I'll never get it through MOT or APK as we call it over here. CO-values are around 9% where a maximum of 0.5% is allowed . Basically the car is a environmental disaster on wheels. It's fast nevertheless. But especially at idle it doesn't run well. The ECU is constantly correcting the RPM to prevent it from stalling and fuel can be smelled. When the revs go up, it seems to be functioning properly. At least it feels like it’s doing what it is supposed to do which is moving me from A to B very fast.
I contacted German tuner Stephan Klasen (who does the S/C mappings for Courtenay Sport also) and he told me he could probably get it right while doing the final map.
So yesterday I went to Klasen Motorsport in Germany to get the mapping done. Unfortenately another problem turned up: above 3200 rpm a fault code comes in saying there is something wrong with the throttle body (I forgot to write down the number of the code). We re-checked all wiring for the 68mm throttle body needs to be rewired. This was all ok. Now Klasen says it can be a knackered TB or the ECU itself is wacked. This could also explain why it is running way too rich.
We decided to first rule out the TB and look after the ECU after that. That’s why I’m looking for a used LSJ Throttle body. Does any one have one laying around? I’ll place an ad in the clasifieds-section later…
After reading Chribo’s post on here I did notice I connected 2 hoses in the wrong place. I put the brake servo pipe on the small nipple on the TB where it should be on the big nipple on the supercharger itself. Now the EVAP-hose is connected to the big nipple where it should be on the small one.
Could this contribute to the problems I’m experiencing? I haven’t tried it the other way around yet, but I asked Klasen to check it out for I left the car at his place. The car was braking normally.
So that’s it for now. I cleaned up the engine bay and rerouted the wiring. The squeeling of the belt was solved by putting on a tighter belt, 5pk1536 is now on. It doesn't seem to scratch anymore so I hope it's fine now. And I also fitted a catch can. Some pics below…
If anyone has an idea of what is causing my problems, I’d be glad to hear!!
