So long story, head went pop, got that sorted and put new water pump belt and tensioner on, it kept boiling over so we bypassed thermostat, wasn't that, bypassed cold start wasn't that, turns out radiator was rotten. Boil over is sorted now. Now it doesn't start when cold, eventuallt we get it going runs nasty then runs fine once warm. so instead of just replacing cold start I pulled full carb out and replaced with another one with cold start and injector already in. Now car won't start at all. Replaced with old unit and now that one won't start car either. Do these have like an immobilized on the ecu that may have locked the engine when we replaced the unit. I know saxo usually do if engine replaced and ecu not unlocked first.thanks

Some Cinq have immobiliser, some don't. It depends on the year.

If you have a basic flat metal key, there is no immobiliser.

Swapping the injector over won't have messed with that though.

It's a 95 plate sporting, it came with a two button fob

Chrishalecinqi said:

It's a 95 plate sporting, it came with a two button fob

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Sounds like it has an aftermarket one, is the key a phat key or a slim key?

D

I'll find out I can't remember lol

Immobilizer cuts fuel pump and ignition I think. Check if you have fuel and spark.

Whatever the cause, the car won't start if it hasn't got fuel or sparks.. so, as above, check those first.

Where did you find the "carb" (carburettor)? Your car should be injection.

Ralf S.

Yeah sorry I keep saying carb it's the throttle, with injector and cold start on it, it's getting fuel and spark that's what has me baffled lol it was spitting flames out the top of the throttle at one point so it was igniting lol

Have you got your nipple in the right place?

The crank pulley can go in one of 3 positions, only one of them is correct and requires having your nipple aligned correctly.

D

Tweak your nipples? But good call.. if the head has been off, then there's a good prospect for the cam-timing to be out.

The spitting back through the throttle body also points at that.

Ralf S.

Hi guys sorry for late reply been a lot on, but got it sorted new coil packs new it leads and a clean up on the new plugs and a jiggle on the injector plug and it fired. Thanks to everyone who replied.