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Vauxhall Astra ECU fault

Posted By rum68br 1/20/2007 1:37:58 PM
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rum68br
 Posted 1/20/2007 1:37:58 PM
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Hello there

Hoping that someone can help me in solving the problem with my Vauxhall Astra.  The car is a 2001 Y Reg Astra club 8V with the engine code of X16SZR with multi point fuel injection and if it helps the management system is multec-u installed.  The car is a manual and unleaded petrol user.

The problem with the car is that it is suffering with low rev (at about 700) with the result being the car is stalling or kangerooing when attempting to slow down for junction or traffic lights.  The car has been with Vauxhall which has led them to replace the throttle body as this is a common fault along with the EGR Value twice.  Vauxhall explained to me that they can't tell what the fault is as there is no fault code on the ECU.

Their next advise is to replace the ECU and update the software.  I know that this is a common fault in the 99 models onwards but have lost faith in the dealership. 

If anyone could advise me of any similar problems or if anything else should be considered it would be appreciated.

Rum68br 

1/20/2007 1:39:58 PM by rum68br
K And R
 Posted 1/20/2007 2:27:48 PM
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Rum68br.

Welcome to the ForumBigGrin

Use the search button in the BBA tool bar above. Also there is a known problem with the Key and Key way on the timing pulley on the crankshaft, as you will see if you do the searchWinkBigGrinBigGrinBigGrin

Kev.

"If you dont KNOW how it works, don,t try to test or fix it"

Angus
 Posted 1/20/2007 3:48:49 PM
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Rum68br

Er; the dreaded SZR [built 98-00] is a single-point Multec-ZE? 

Check the gasket under that [new?] throttle body; I've seen them leak and cause this, along with various breather hose faults.

.

Cartune
 Posted 1/20/2007 5:25:00 PM
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Rum68br

A local garage owner customer of mine had a very similar problem on his daughters  Astra a month or two ago. I scanned it for him a number of times and never got any fault codes from it ( i must add that the car behaved perfectly when I was looking at it Wink)

Anyway, he got in contact with a friend of a friend of a friend who works in Vauxhall and he was told that this can be a very common problem on this age car and is down to the throttle pedal sensor.

He bought a new accelerator pedal and the car has been 100% since.

Apparently this fault does not even show up on the Tech 2  WinkWinkWink

Hope this helps

Paul

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1/20/2007 5:26:42 PM by Cartune
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 Posted 1/21/2007 9:22:32 AM
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Rum, this engine is single point injection, and suffer from slow idler motors, which often cause the engine to stall on decel. Try cleaning the motor, and if you have the scan tool, test the motor operation for smoothness...any sign of sticking would inicate a fault.

If I understood women as well as I understand cars, I'd be the envy of every man.
rum68br
 Posted 1/21/2007 1:25:09 PM
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Hello again

Firstly thank you to everyone who replied with very useful information.  Will be going through the list in the next couple of weeks.

Just one more question.  Does anyone have a clue where i can get the engine diagram for the 2001 astra 1.6 8v, engine code X16SZR so i know where all the sensors and parts are.  Finding one has been difficult as a service manual for the car has not been produced (dont know why??)

Again thank you for your kind help

Rum68br


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