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Yvon
Alfasud
Joined: 22 Apr 2003
Posts: 31
Location: Wavre, Belgium
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 Posted: Tue Apr 22, 2003 9:19 pm Post subject: Diagnostic EFI |
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In the manual to diagnose the EFI (in my case ML4.1) they speak about a tester (C.9.0032 and C.1.0136), set selector (1) to position 1 turn switch (1) to position 2, and so on....
I don't have this tester so does it exist a procedure where I can use a regular electronic tester ?
Yvon |
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Scott Sander
Alfa 33
Joined: 20 Feb 2003
Posts: 419
Location: Sydney, Australia
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| Posted: Wed Apr 23, 2003 2:04 am Post subject: |
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Hi,
You could try building the blink code tester (T2). Info is available from my website. It will give you the blink codes for any faults the ECU has recorded. 
Although I would recommend resetting the ECU and see if it then records any codes. The reason being is you don't know when those codes were recorded. They could be anytime from when the battery was last disconnected. 
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Scott Sander
'91 Alfa 33 Boxer 16V Monza - Awesome
http://www.sanderfamily.com |
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Yvon
Alfasud
Joined: 22 Apr 2003
Posts: 31
Location: Wavre, Belgium
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| Posted: Wed Apr 23, 2003 8:21 pm Post subject: |
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Thanks for the answer and as I told you I already build the T2 tester and it give a 4-4-4-4 response. I tought ECU record the error immediatly when it occurs. However, I'll do that.
Went to a Bosch agent to get some new o-ring for the injectors. I was very surprised when this guy told me they couldn't deliver those small piece of rubber. I have to order it in another place. I can't believe they repair car without having any of these o-rings 
However, I speak with him about my ratling problem and he told me it could be the rotor and a problem with Hall effect.
Yvon |
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Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
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| Posted: Thu Apr 24, 2003 12:04 am Post subject: |
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Hi
That tester plugs into the ECU wiring. Basically it just means you plug in a multimeter, and depending on which way round the knobs are I think it connects up different circuits
I suspect that you can do the same test by just pluging the multimeter into the relevant wires on the ECU connector
All the best
Keith |
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Scott Sander
Alfa 33
Joined: 20 Feb 2003
Posts: 419
Location: Sydney, Australia
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| Posted: Thu Apr 24, 2003 12:33 am Post subject: |
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Yvon,
Yeah sorry you did mention it in another post, as there are so many posts it's a little hard to remember exactly what has been said to whom. So sorry for repeating myself. 
I agree with Keith the other tester seems to be a couple of rotary switches that have been wired up to pick up the different signals from the ECU. I guess if you managed to find all the bits you could potentially make one yourself. For an individual I think it is far too much effort for the amount of use it would get. 
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Scott Sander
'91 Alfa 33 Boxer 16V Monza - Awesome
http://www.sanderfamily.com |
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