CIS BS? I don't think I need this stuff.

lendaddy · 05-16-2002, 07:20 AM

Ok, I find it hard to believe that I need all the cold start crapola on my car. I mean damn it's all over the place and yet my car starts terrible when cold. I would rather not have it and just know that cold starts will be like every other older vehicle I've had(which didn't start that bad I might add). What do you guys think, I am tempted to say take it all off but I think that might make normal operating fuel pressure adjustments necessary.

Superman · 05-16-2002, 07:29 AM

No, your normal operating settings would stay the same. But the trouble is your cold starting might be pretty bad. There is no accelerator pump, so you can't pump the gas to get it to run. It would be too lean, which means intake (perhaps air box) explosions.

RarlyL8 · RarlyL8's Garage

Hang on for another day or so. The schematics I sent you will clear all of this up. The Euro CIS system starts fine (I assume) without many of the US items. Being a Michigan resident you may not want to remove them all. The pix will help you decide wich ones to ditch.

No airbox to explode on the 930CIS. I suspect you'd have to play the throttle if all were removed.

Patronus · 05-16-2002, 01:33 PM

I have a '74 2.7S with CIS. I disconnected off the cold-start system because of a fuel leak. In summer the car would fire right up, but it is becoming winter now - not even very cold yet - and I can't get it started AT ALL without taking off the air filter and bleeding the injectors for a second or so. If it's below 10 degrees celcius I have to do it repeatedly.

This past weekend I tried to quietly leave a girl's house in the early hours of the morning, just to be let down by my stuttering, sputtering, backfiring, non-starting 2.7 in the middle of the night.

I would advise against starting a well-tuned 911 without some sort of cold-start system when it's cold. Unless it's meant for racing.