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Fault codes on a 440 single point injection 1996

Discussion and advice for 440, 460, 480 owners.

1986 - 1997 440
1986 - 1997 460
1986 - 1997 480

volvoskim
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Fault codes on a 440 single point injection 1996

Post by volvoskim » Mon Dec 08, 2008 11:36 am

Finally got around to reading the codes on my sisters 44o si. 1.8 litre
The LED as returned 121 and 223.
121 I think is the air pressure sensor,223 the idle control valve.
Question is where is the air pressure sensor located? ,there is no unit on the intake elbow as with the multi point systems



MadeInJapan
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Re: Fault codes on a 440 single point injection 1996

Post by MadeInJapan » Mon Dec 08, 2008 5:09 pm

I don't know a thing about your sister's car but looking it up on VADIS, it sure is nice looking! Do you have any pictures to share? VADIS (when switched to European models- I'm in the U.S.) shows an "intake load pressure sensor" on the throttle body. I'm assuming this is the same thing as an air pressure sensor. It is #2 in the diagram below:
Intake Pressure Load Sensor.jpg
Intake Pressure Load Sensor.jpg (23.64 KiB) Viewed 2671 times


'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

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Re: Fault codes on a 440 single point injection 1996

Post by volvoskim » Tue Dec 09, 2008 1:09 pm

Cheers for that,Ill have a quick look the nest time I bump into her.

I can take a few pics if you want.



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billofdurham
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Re: Fault codes on a 440 single point injection 1996

Post by billofdurham » Wed Dec 10, 2008 3:45 pm

1-2-1 is the Manifold Absolute Pressure (MAP) sensor, signal error.
Possible causes are wiring; vacuum hose split/blocked or the sensor itself.

To check the MAP sensor:
MAP sensor.jpg
MAP sensor.jpg (68.47 KiB) Viewed 2411 times
2-2-3 on the single point injection is the Idle Speed Control (ISC) actuator, signal error/signal absent.
Possible causes are wiring short or open circuit.

To check the ISC actuator:
ISC actuator.jpg
ISC actuator.jpg (75.81 KiB) Viewed 2398 times
MIJ - lots of 440 pictures at:

http://www.volvogallery.org.uk/showgallery.php?cat=3191

They were popular cars over here and there are still many of them on the road. My neighbour has a '95 1.9 turbo diesel in immaculate condition which can still return 53mpg on a motorway run at 70mph. (That is the legal speed limit and I think he is frightened to say that he is usually in excess of this.)

Bill.


Work was good - retirement is better.

1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.

MadeInJapan
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Re: Fault codes on a 440 single point injection 1996

Post by MadeInJapan » Wed Dec 10, 2008 7:48 pm

Thank you Bill...nice looking sporty but small Volvo...wish we had it here.


'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

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Re: Fault codes on a 440 single point injection 1996

Post by volvoskim » Thu Dec 11, 2008 10:47 am

Hi thanks for getting back.
Is the map sensor located on the bulkhead?



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billofdurham
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Re: Fault codes on a 440 single point injection 1996

Post by billofdurham » Thu Dec 11, 2008 11:25 am

Yes.

This shows the locations of the engine management sensors and other parts on that car:
Sensor locations.jpg
Sensor locations.jpg (144.91 KiB) Viewed 2434 times
Bill.


Work was good - retirement is better.

1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.

volvoskim
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Re: Fault codes on a 440 single point injection 1996

Post by volvoskim » Thu Dec 11, 2008 11:54 am

Excellent,thanks for your help

Ian



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Re: Fault codes on a 440 single point injection 1996

Post by volvoskim » Wed Dec 17, 2008 2:18 pm

I went ahead and replaced the MAP sensor,rather than checking it.
Anyway Im now getting code 112, or ecu problems, but the car as a lot more power.......puzzled!



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Re: Fault codes on a 440 single point injection 1996

Post by billofdurham » Fri Dec 19, 2008 12:14 pm

If you have more power then the MAP sensor was probably iffy.

Check the Engine Control relay and the ECM:
EC relay.jpg
EC relay.jpg (26.31 KiB) Viewed 2397 times
ECM.jpg
ECM.jpg (33 KiB) Viewed 2397 times
Bill.


Work was good - retirement is better.

1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.

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