Emerald
Author
Discussion

martylemoo

Original Poster:

12 posts

231 months

Friday 24th August 2007
quotequote all
Hi,
I have just put an S160 engine complete with Jenvey DTHTB and Emerald ECU into my early S1. Gone to start it and there is nothing at all. I have setup the immobiliser section of the ecu but still nothing.
Just now I jumped the two leads on the starter and it turned the engine over and the ECU light went from Red to Green which is good but there was no firing action.
Obviously my immobiliser is doing something funky which is why you cannot start from the ignition but my question is does the immobiliser on early cars also stop the fuel. The pump primes when you turn on the ignition but does the immobiliser cut the injectors?
If anyone can help me with this it would be much appreciated, I am scratching my head as I really am not sure where to go from here.
thanks for the help

slatess1

437 posts

245 months

Friday 24th August 2007
quotequote all
Give emerald a call direct or dave @ dva power on 01908 322 652, he knows everything!!!

rfoster

1,482 posts

285 months

Friday 24th August 2007
quotequote all
Sounds stupid but do you have the correct map loaded into the Emerald? Have you tried to adjust it yourself at all - in which case did you use a PC that has a built in serial port, or did you use a serial to USB cable?

martylemoo

Original Poster:

12 posts

231 months

Friday 24th August 2007
quotequote all
The map came with the engine as it had just been mapped by Plans Motorsport. The only modification to the ECU that I have made has been to set the immobiliser up. It now reads Active-Disarmed as it should and that was with a Laptop with a dedicated Serial port.

rfoster

1,482 posts

285 months

Friday 24th August 2007
quotequote all
Okay - only I recently had a problem with my Emerald where I tried to reset the Throttle Pop on a new TPS - using a laptop with a USB/Serial Cable and the car wouldn't start (turned over though) - cause a problem writing to the map. Might be worth double-checking that you can read the map from the ECU okay. I had to borrow a laptop with a dedicated serial port.
If the Emerald changes from red to green under cranking then it is getting the correct signal from the crankshaft position sensor so you can rule that out. Possibly MFRU problem or like you say, the immobiliser. Have you tried deactivating the immobiliser altogether and seeing what happens there? Have you checked the Interia switch hasn't popped? (actually this wouldn't prevent cranking, only fuelling.)

martylemoo

Original Poster:

12 posts

231 months

Friday 24th August 2007
quotequote all
tomorrow I am going to take the immobiliser totally out of the circuit, that will rule that out. Then I shall see where I go from there. I just spoke to Dave at Emerald and he thinks it should all be working. Somethings amiss, i just need to find out what.

martylemoo

Original Poster:

12 posts

231 months

Saturday 25th August 2007
quotequote all
I think the problem is the MFRU, there is ignition in but nothing out. So I think the problem definately lies there. Just out of interest is there anything different between the s160 loom and the normal 120bhp loom. I have looked and cannot see any difference.