engine managment light come on

britishmade1975 · Nov 18th, 2010, 16:04

went out in Volvo today and it lost power and engine management light came on and now don't run right its a 95 N reg 940 se turbo any ideas

CTCNetwork · Nov 18th, 2010, 17:10

Hi,

First thing to do would be get the codes off. If you don't have that OBDII port in the bottom of the arm rest then you should have a diagnostic port on the suspension turret. The FAQ will help here:
FAQ: Code Reading...

Des. . .

britishmade1975 · Nov 18th, 2010, 18:42

ok cool i will have to get it in a garage to get the codes off it then as i dont have a machine

CTCNetwork · Nov 18th, 2010, 18:51

Hi,

Quote:

Originally Posted by britishmade1975

ok cool i will have to get it in a garage to get the codes off it then as i dont have a machine

The Diagnostic unit in the engine bay doesn't need a reader or machine as it is an LED flash unit. LED will flash for the codes and there are instructions in the cover for operation.

You can make an LED flash reader if you have the OBDII port in the arm rest storage as the car isn't OBD compliant!

Des. . .

gpl1968 · Nov 18th, 2010, 18:56

Make one!

This cost me £17

britishmade1975 · Nov 18th, 2010, 19:37

lost all ready

gpl1968 · Nov 18th, 2010, 21:43

Quote:

Originally Posted by britishmade1975

lost all ready

Did you mead 'already'?

If you read the section in the FAQ entitled Engine and OBD Diagnostic Codes, you will find that pre '95 940s have a diagnostic box in the engine bay, from which fault codes can be read by means of a push button and flashing led.

940s built after 1995 do not have this diagnostic box but instead have an OBDII diagnostic port fitted in the base of the central armrest. The diagnostic system in these cars is not OBDII compliant however, so generic OBDII scanners will not work.

Volvo in their wisdom decided to keep the diagnostics the same as the earlier 940s so all you need to do is build a simple device that plugs into the OBD port and replicates the function of the engine bay diagnostic box.
The procedure for retrieving fault codes (and cancelling them) is the same as described in the FAQ.
The only difference is that instead of moving a connector between sockets to access various functions, I have used a rotary switch.

britishmade1975 · Nov 18th, 2010, 22:36

i see now mine is a 95 pre face lift so will look under bonnet tomorrow which side is it on failing this looks like volvo i have not got the brains to build a flashing box

gpl1968 · Nov 18th, 2010, 22:38

It should be attached to the nearside strut tower.

britishmade1975 · Nov 18th, 2010, 23:11

ok i will look tomorrow thanks

Nov 18th, 2010, 16:04	#1
britishmade1975 Member Last Online: Jan 5th, 2013 19:05 Join Date: Jul 2010 Location: coventry	engine managment light come on went out in Volvo today and it lost power and engine management light came on and now don't run right its a 95 N reg 940 se turbo any ideas

Nov 18th, 2010, 17:10	#2
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium View Photos By: CTCNetwork	Hi, First thing to do would be get the codes off. If you don't have that OBDII port in the bottom of the arm rest then you should have a diagnostic port on the suspension turret. The FAQ will help here: FAQ: Code Reading... Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."

Nov 18th, 2010, 18:56	#5
gpl1968 VOC Member Last Online: May 5th, 2024 23:42 Join Date: Jun 2007 Location: Wirral View Photos By: gpl1968	Make one! This cost me £17 __________________ Gavin 1997 945 CD (B230FK) [RIP: 1991 945 Turbo (B230FT) 1992 945 SE turbo (B200FT)]

Nov 18th, 2010, 22:38	#9
gpl1968 VOC Member Last Online: May 5th, 2024 23:42 Join Date: Jun 2007 Location: Wirral View Photos By: gpl1968	It should be attached to the nearside strut tower. __________________ Gavin 1997 945 CD (B230FK) [RIP: 1991 945 Turbo (B230FT) 1992 945 SE turbo (B200FT)]

Nov 18th, 2010, 18:42	#3
britishmade1975 Member Last Online: Jan 5th, 2013 19:05 Join Date: Jul 2010 Location: coventry	ok cool i will have to get it in a garage to get the codes off it then as i dont have a machine

Nov 18th, 2010, 19:37	#6
britishmade1975 Member Last Online: Jan 5th, 2013 19:05 Join Date: Jul 2010 Location: coventry	lost all ready

Nov 18th, 2010, 22:36	#8
britishmade1975 Member Last Online: Jan 5th, 2013 19:05 Join Date: Jul 2010 Location: coventry	i see now mine is a 95 pre face lift so will look under bonnet tomorrow which side is it on failing this looks like volvo i have not got the brains to build a flashing box

Nov 18th, 2010, 23:11	#10
britishmade1975 Member Last Online: Jan 5th, 2013 19:05 Join Date: Jul 2010 Location: coventry	ok i will look tomorrow thanks

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