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Discussion Starter · #1 ·
HI, I HAVE A ROVER 100 (1.1) ASCOT SE, 1998 R reg.

ABOUT 2 DAYS AGO I TRIED TO START THE CAR BUT IT DIDNT. THE ENGINE TURNS BUT IT DOESNT START. I TOOK IT TO A GARAGE AND THEY DID A FEW CHECKS AND SAID IT HAD SOMTHING TO DO WITH THE IMMOBILISER.

IVE LOOKED THROUGH THIS FORUM AND A COUPLE OF PEOPLE ARE SAYING THAT IF YOU CHANGE THE BATTERY AND PUSH THE BUTTONS IN A SPECIFIC ORDER, THE IMMOBILISER SHOULD SYNCHRONISE AND THE CAR SHOULD WORK PERFECTLY.

I JUST WANTED TO KNOW IF SOMEONE KNOWS HOW TO SYNCHRONISE IT PROPERLY AND COULD GIVE ME INSTRUICTIONS ON HOW TO.

THANK YOU FOR YOUR HELP. CHEERS
 

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That's interesting - on mine when the immobiliser is 'in' the engine won't even turn over.

There are supposed to be some workarounds. If you have the information available there is an immobiliser code and this is used in conjunction with turning the key in a certain sequence to de-immobilise the car.

I take it that when you use the keyfob to unlock the car the red flashing light on the dashboard stops...??

On a side note - if you disconnect the battery for a little while then reconnect it and press the keyfob button 4 times it should resync to that keyfob and work fine.
 

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Discussion Starter · #3 ·
Yeah the red light does turn off. the thing is i have two keys for the car so how will i get around that? do i just disconnect the battery wait a little while, like you said and push the buttons 4 times and it should work?
 

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Yes. Disconnect the battery, then once its been reconnected hold the keyfob close to the car and press the lock button 4 or more times. It will have to be done on both keyfobs for each to work - although as far as I know its not necessary that they both have to be used instantly.

Once that light is off the alarm should be off and more importantly so should the immobiliser - so long as you haven't been modifying anything on the car.
 

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Discussion Starter · #5 ·
by the way, where could i get those codes your talking about?

funny thing is i was driving the car perfect the night before and the next morning it just wouldnt start.

anyway thanks 4 ur help.
 

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The security codes for your car should be on a bit of paper along with the owners manual, etc.

One last shot in the dark is to press the smooth button on the keyfob once you have turned on the ignition, then try starting the car. Although as long as you haven't been faffing about getting in and starting the car it should be ready to start anyway.
 

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Discussion Starter · #7 ·
aiite thanks for your help mate. ill have a go at that in a minute. much appriciated. cheers
 

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rover 100 doesnt have a key code for the imboliser -like rover 200 and 400 series

also if the red light goes out - and the engine turns over - im pretty sure the imobiliser is de-activated and isnt stopping the car from starting.

The reason for it not starting could be anything

but i would check with the spark side of things -
since its R reg it will be a multipoint injection engine (or should be)
It could be the crank shaft positions sensor is faulty - this will also stop it starting. but if this is faulty then you wont get a spark.

generally the fuel side of things on this engine is quite reliable.
the spark system is quite old (rotor arm) and thus prone to failure.
 

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Yeah I was starting to think that also. I'd check its getting a spark first from the king lead (take care doing this) and then another spark plug lead if that does spark, and if it isn't then check the crank sensor.
 

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The problem I think is the black relay box under the engine ecu. If you open your bonnet and look at the engine ecu there is a box with two big connectors under neither it. Take the box out as it is just clipped into place and open it up. I bet some of the contact in it have burnt out or have rusted. alternatively the engine ecu code have wiped the immobiliser code this was common on the 1.1 MPI which I am sure you have been a late 100.
 
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