can anyone help with my problem i am fitting 1.8 cvh out of the serria and want to make my own loom can i do it with out useing the esc unit or do i have to use the unit for the engine to run than make the rest of the loom

I'm using the 1.8 cvh and used the esc. Its pretty simple to wire it up with the aid of the haynes manual. Then i just built the rest of the loom around it.

As for if it is needed i couldnt say, i just thought it was easier to use it.

Oh and welcome to the mad house!

HTH,
Chris

[Edited on 28/12/09 by sprouts-car]

Yes you need it.

But it's simple, you should have 3 loom plugs on the engine sub loom.

the following download "loom plugs (Sierra to granada) details the functions on the 3 plugs. It's intended for helping put 24V's in sierras but should do the trick.

http://www.claytune.org.uk/index.php?option=com_weblinks&view=category&id=19%3Aother-resources&Itemid=53

TT

thank you that has helped a lot

If you are keeping the original carb setup then I would say yes you need it.

That is what I have done, also keeping the air temp sensor mounting it within a Piper cross plate.

If you are going down a bike carbs then would suggest a possible route would be megajolt route with edis4.

Which route are you going?

Adrian

[Edited on 28-12-09 by AdrianH]

I don't see any advantage in replacing the ESC-Hybrid with Megajolt.

TT

Neither did I, that,s why I kept the Esc-Hybrid system on the Sierra Donor with the 1.8.

But a few others on here have fitted bike carbs and say it gives more power, and when they have done so they went Megajolt.

Below is what I learned from the donor I had 1.8 CVH 1991 vintage with Esc-Hybrid.

The Esc-Hybrid system has 4 sensors I think if memory is correct.

Incoming Air temp in the filter, water temp, vacuum via its inbuilt MAP sensor and the 36 :1 wheel position sensor.

It controls vacuum switches for choke and something else?(not sure what unless its two stage choke enrichment), also provides a pulsed relay for the electrical heating of the choke bi-metal strip and as such is dependent on the auxiliary output from the alternator

I guess going to bike carbs you would loose some of the functionality of the Esc-Hybrid system and as you can not reprogramme it for different timings dependent on load, extra fuelling etc, it is why they have used Megajolt.

Just a guess, I am no expert on management systems, wish I was.

Adrian

Good grief my . and , and caps are miles out, I keep reviewing it. (Getting sad).

[Edited on 28-12-09 by AdrianH]

thank you all
i am going the route of keeping the orignal carb set up and hopefully fitting a k&n filter on it if i can get one