Dav
Member
Registered: 23rd Jul 02
Location: Falkirk, Scotland
User status: Offline
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My engine managment light has come on and I don't know why.
When it came on I was going along the motorway accelerating just over 80mph when the car suddenly stopped pulling for a second, like I had stamped really hard on the brakes. Then it came back to life but was sort of lumpy for a while. Now the car has massive flat spots where it doesn't accelerate around 2000rpm in every gear. It also doesn't seem to accelerate has hard and almost doesn't accelerate at all over approx 70 to 80mph. And the engine is ticking more than normal.
What have I done to my car? Does anyone know what might be wrong?
I'm gonna have to take it to a garage anyway coz I don't have a clue about engines, but I thought I'd ask on here so I have a rough idea what it might be...
It's not been my lucky day 
Cheers.
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MillerCorsa
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Registered: 30th Jan 03
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As someone will probably let us know, there is a thread regarding how to read the fault in memory, used by the EMS.
It involves inserting a wire into 2 terminals on your fusebox, which is to be honest a bit cheaper than the 50quid its going to cost for a garage to hook it up to the fault reading box!
Sounds like it could be a simple problem, such as sparks etc, check all your engine is looking ok, and everything is plugged in correctly, look out for leakages.
Miller
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Sam
Moderator
Premium Member
Registered: 24th Dec 99
Location: West Midlands
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If you want to check the diagnostic fault codes out yourself, you can just use a paperclip to short two pins on the main engine ECU diagnostic port (usually where the fusebox is), the two pins you need to short depend on the type of engine management system you have (ie. Motronic/Multec/Simtec etc.).
There is a guide on how to read fault codes on this web site:
http://www.topbuzz1.carenthusiasts.co.uk/info/fault_codes/fault_codes.htm
Another fault code list for things such as auto gearbox, 4x4, ABS, etc.:
http://www.akirwan.freeserve.co.uk/akhow2/diag_no3.rtf
[Edited on 12/05/03 by Sam]
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Dav
Member
Registered: 23rd Jul 02
Location: Falkirk, Scotland
User status: Offline
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Thanks Miller, do you know where this thread for reading memory faults is? Got a link?
I should also say that my car is revving high/low between 500 and 1500rpm on idle, and I think maybe over fueling.
Also Rob_Scarborough sent me a U2U with a few idea's. Thanks mate.
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Mr 106
Member
Registered: 1st Oct 02
User status: Offline
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another afm
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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dont the 1.2 16v's use map sensors and not afm's?
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Sam
Moderator
Premium Member
Registered: 24th Dec 99
Location: West Midlands
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I'm quite sure they use MAP sensors.
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blebo
Member
Registered: 18th Apr 02
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1999 1.2 16V....this means that the paper clip trick dosent work.....or at least It didnt on my sxi
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Wolf In Welsh Clothing
Member
Registered: 31st Mar 03
Location: North Wales...... Cooper S on order
User status: Offline
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quote:
Originally posted by blebo
1999 1.2 16V....this means that the paper clip trick dosent work.....or at least It didnt on my sxi
16 pin diagnostic reading:
connect the XX with a paper clip and turn the ignition on, dont start the engine though!
0 0
0 0
X 0
X 0
0 0
0 0
0 0
0 0
every code is 4 digits long and will flash 3 times, if the light stays off then no codes are stored. If a code begines with a 1 then it is a vauxhall specific code, all codes begining 0 can be found at On Board Diagnostics.
10,4,10,10,10,4,10,10,10,4,10,10, is code 0400 EGR valve.
Hope this helps.
10,4,10,10 would flash 10 times, pause for 1 sec, flash 4 times, pause for 1 sec, flash 10 times, pause for 1 sec, flash 10 times, pause for 2/3 secs.
[Edited on 12-05-2003 by Wolf In Welsh Clothing]
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Dav
Member
Registered: 23rd Jul 02
Location: Falkirk, Scotland
User status: Offline
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Cheers everyone. I'll see what I can do tomorrow. Will probably take it to a few garages to see what they say coz they'll know better than me obviously.
Thanks for all the help and advice, I appreciate it 
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Jamog
Member
Registered: 14th Sep 02
Location: Scotland
User status: Offline
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I know this was posted along time ago but... was just wondering what was the solution to this. My car has just developed a similar fault and its pissing me off.
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luca2020
Member
Registered: 26th May 02
Location: Maidstone, Kent
User status: Offline
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quote:
Originally posted by Dav
Cheers everyone. I'll see what I can do tomorrow. Will probably take it to a few garages to see what they say coz they'll know better than me obviously.
Thanks for all the help and advice, I appreciate it
ud think that wouldent u, dont bet ur money on it tho
they will use a cheeper version of the TEC1 or TEC2 diagnostic tools that vaux use and will charge u
to find out the excat same result of what a garage would tell u, do the paper clip test, it spits out the same info weather u do it or a garage does it, so save ur self money and do it ur self
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