Rullingen

I have two EU3 IACV's but I need an EU2 type with 5 pins to work with my particular Emerald ECU. If anyone has one they could sell me or even swap for an almost new EU3 IACV that would be wonderful. Thanks, Rob.

Please could anyone supply a ECU map for an Emerald ECU fitted to a Roadsport with a stock 1600 k series? I'm fitting an Emerald in place of the standard ECU that I have had no end of issues with, and I just need a basic map to 'get me off the ground' so to speak without doing any harm to the engine.

Excellent. Thank you.

If I switch my EU3 MEMS for the Emerald, will there be issues with the immobiliser? Should it be removed or reprogrammed?

Thanks for the help. It does seem that, as suggested above, the pipe that went to the top of the radiator is omitted, and the pipe that tee'd in to it from the block now goes straight to the header tank. The new radiator requires bleeding from the bleed screw on the top left of the rad. Let's hope it works..... Best regards, Rob.

Hi, I'm fitting a new Radtec radiator to my 2007 K Series which is already fitted with a QED remote thermostat. The outgoing stock radiator has a smaller outlet at the top next to the inlet where there is a vent pipe returning to the top of the header tank. The incoming Radtec item does not have this connection. It's hard to believe they would have forgotten to fit it, so where should I route the vent pipe to? Thanks, Rob.

Is this item now sold? Rob.

This is all great information, and I thank you all. If the ECU regulates the IACV according to engine revs, why is mine reving so high and erratically at cold? Also, if the ECU ignors the O2 sensor for the first 30 seconds of running, and mine behaves particularly badly at first start up, does that not rule out the O2 sensor? Thanks, Rob.

So, the engine should run normally with the lambda sensor disconnected. In which case; if it runs rough with the lambda sensor connected and well with the lambda sensor disconnected I can assume the lambda sensor is faulty. Have I got this right? So will a fault with the lambda sensor only show itself when the engine is cold? Thanks, Rob.

Yes. It's a stock Caterham k series exhaust.

I don't think so. It sounds like the IACV is opening and shutting somewhat erratically. That's why I changed it last year, I thought it was sending 'bad' position info back to the ECU, but the new one doesn't seem to be any better, Also, the warmer it gets, the better it behaves.

https://photos.app.goo.gl/K4tASXwd48uuRpoz6 This link is to a video I took earlier when the engine had been running for about two minutes. Initially it was worse than this. Reluctant to start, then would not pick up when the throttle was opened, and was sucking loads of air through the IACV. Last Autumn I changed the IACV for this reason, but now it seems worse than ever. I'm guessing this is sensor related. If I could find the OBD2 port I might get some clues as to what's going on, but I can't see one under the dash where it's supposed to be. Does anyone know what the cause of this problem is? Thanks, Rob.

"Correct - should be dangling somewhere near the steering column and is a large 16-way connector with nothing connected" Is this the ODBII standard connector or does one need to make an adaptor? Rob.

So what's the going rate for the full kit second hand? I have one I never found time to fit but I've no idea of its worth now.

Definitely not Jim. In fact it has only seen rain two, or maybe three days in its life. Rob.