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 Post subject: Bosch Motronic Fault Codes (all types)
PostPosted: 24 Mar 2008 
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1991 Citroen BX 16v

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Attachment:
BOSCH Motronic ECU Fault Codes.pdf


Use the above PDF or Motronic fault codes for the following systsms:- 1.5, 1.7, 1.8, 2.5, 2.7, 2.8, 2.8.1, 2.8.3, 3.1, MP3.1, 3.2, 4.1, 5.1, 5.1.1, First Generation and MPi.

ie all Motronic without OBDC2


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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 11 Sep 2009 
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1970 Triumph 2000 Mk II

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What is OBDC2?

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 11 Sep 2009 
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1970 Triumph 2000 Mk II

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:cry: Where are the Fault Codes for Motronic 1.3?

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 11 Sep 2009 
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1970 Triumph 2000 Mk II

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I have found this on the Tramontana site:

Code Failure at...
11 Test End
12 Test Start
13 Air temperature sensor
14 Coolant temperature sensor
15 Fuel pump relay feed
21 Throttle switch, idle contact
22 Idle speed control valve/motor feed
23 Idle speed control valve/motor
25 Variable inlet resonance L valve
26 Variable inlet resonance C valve
27 Vehicle speed sensor
31, 32 Wrong fuel/air mixture
33 Air flow or MAP sensor
Throttle potentiometer (Mono-Jetronic)
34 Canister purge electrovalve
35 Throttle switch, full load contact
36 Oxygen sensor heating
41 Crank angle sensor
42 Injector
Code Failure at...
43 Anti-knock control
44 Knock sensor #1
45 Ignition coil #1
46 Turbo pressure valve
47 Turbo pressure regulator
51 Oxygen sensor #1
52 Oxygen sensor system control
53 Battery voltage
54 ECU
55 CO mixture potentiometer
56 Coded alarm system
57 Ignition coil #2
62 Knock sensor #2
63 Oxygen sensor #2
64 Fuel/air mixture control B
65 Cylinder sensor
71-76 Injector #1-#6
91 Injectors feed


Bottom of this page

But don't know which system the codes refer to. I assume it must be for my 16v as I keep getting code 43!
Feel free to tidy this lot up Vanny if you wish

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 11 Sep 2009 
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erm, has your car even got a knock sensor? i didnt think it was old enough.

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 11 Sep 2009 
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1970 Triumph 2000 Mk II

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It has mate but no cat and a 3 row ECU. I keep finding out and then forgetting which type I have but I *think* it's 1.3 :? Tis a 1990 H plate

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 08 Oct 2009 
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Ther's a lot of good stuff on that Tramontana site. :D

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 02 Feb 2018 
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The link from the first post is unnavailable?

Anyone has the PDF?

Anyone knows the procedure to do the check without having a diagnosis machine?


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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 04 Feb 2018 
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1991 Citroen BX 16v

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I've re-uploaded the file for you, shouldn't get lost again.

There are instructions to manually read the fault codes on bx16v forum

http://www.bx16v.co.uk/phpBB3/viewtopic ... a6fcb8e744

Its worth noting that on many if not all later cars only one side of the diagnostic connector under bonnet is actually connected to anything due to a fault in the wiring!

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 Post subject: Re: Bosch Motronic Fault Codes (all types)
PostPosted: 04 Feb 2018 
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Vanny, you're the man!

Many thanks!


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