OBDII Codes from a T4.

Alex. · Nov 21st, 2007, 14:18

Guys,

I've had my T4 for about 3 weeks now, but had the fright of my life on Monday!

Pootling along the road the Engine Check light came on! :hmm4er: I had to get to work, so I took it easy and low down performance didn't seem to be affected. When I started the car to go home the light had gone out, but it came back after a short time. Next morning, the light was out and has stayed out ever since.

That's just a bit of background really, to the real question...

A mate lent me his OBDII code reader and this showed a P0107 code!

The blurb from the code list says - P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

Can someone tell me what this means? And how do I fix it?

Alex.

Dandle · Nov 21st, 2007, 16:17

The probable causes for that code are "Wiring short to earth, Manifold Absolute Pressure (MAP) sensor, BARO sensor, ECM". Thats as far as i can help though. Good luck.

pyaap · Nov 22nd, 2007, 18:24

Is your car a Phase 1 or Phase 2? It could me the MAP sensor (or one of the two on a Phase 2 car) as I have had mine replaced once under warranty.

Alex. · Nov 22nd, 2007, 20:40

She's an '02 plate phase 2, with 96k on the clock.

Is the MAP sensor a common fault?
How expensive are they to replace?

Thanks for the help!

Alex.

pyaap · Nov 23rd, 2007, 20:26

Quote:

Originally Posted by Alex.

She's an '02 plate phase 2, with 96k on the clock.

Is the MAP sensor a common fault?
How expensive are they to replace?

Thanks for the help!

Alex.

I don't think failure is that common, but if definitely does happen. Since yours is a Phase 2, you will have 2 MAP sensors, one on the intercooler exit and the other on the intake manifold. I believe genuine ones cost about £70 to buy and are very easy to fit (the one on the intake manifold may require the fuel rail to come off, but that's easy enough).

Alex. · Nov 26th, 2007, 08:28

Thanks Pyaap, all good stuff. I spoke to the dealer I purchased her from and he is sorting me out a sensor (or two!).

What are the symptoms of a MAP sensor failure?
I have noticed (possily...) a slight drop off in performance and an increase in fuel consumption. Would that be consistent with a sensor?

Alex.

Nov 21st, 2007, 14:18	#1
Alex. 2 Strokin' Toxopholite Last Online: Aug 20th, 2023 13:25 Join Date: Mar 2007 Location: Rainham, Kent	OBDII Codes from a T4. Guys, I've had my T4 for about 3 weeks now, but had the fright of my life on Monday! Pootling along the road the Engine Check light came on! :hmm4er: I had to get to work, so I took it easy and low down performance didn't seem to be affected. When I started the car to go home the light had gone out, but it came back after a short time. Next morning, the light was out and has stayed out ever since. That's just a bit of background really, to the real question... A mate lent me his OBDII code reader and this showed a P0107 code! The blurb from the code list says - P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input Can someone tell me what this means? And how do I fix it? Alex.

Nov 22nd, 2007, 18:24	#3
pyaap Non-T4 T4s RULE!!!! Last Online: Mar 29th, 2017 11:24 Join Date: Nov 2002 Location: Bristol / Bath	Is your car a Phase 1 or Phase 2? It could me the MAP sensor (or one of the two on a Phase 2 car) as I have had mine replaced once under warranty. __________________ "An Engine Which Runs Lean Lives on Borrowed Time" http://www.volvoforums.org.uk/showthread.php?t=13998

Nov 21st, 2007, 16:17	#2
Dandle Master Member Last Online: Dec 29th, 2013 22:39 Join Date: Dec 2003 Location: Ashford	The probable causes for that code are "Wiring short to earth, Manifold Absolute Pressure (MAP) sensor, BARO sensor, ECM". Thats as far as i can help though. Good luck.

Nov 22nd, 2007, 20:40	#4
Alex. 2 Strokin' Toxopholite Last Online: Aug 20th, 2023 13:25 Join Date: Mar 2007 Location: Rainham, Kent	She's an '02 plate phase 2, with 96k on the clock. Is the MAP sensor a common fault? How expensive are they to replace? Thanks for the help! Alex.

Nov 26th, 2007, 08:28	#6
Alex. 2 Strokin' Toxopholite Last Online: Aug 20th, 2023 13:25 Join Date: Mar 2007 Location: Rainham, Kent	Thanks Pyaap, all good stuff. I spoke to the dealer I purchased her from and he is sorting me out a sensor (or two!). What are the symptoms of a MAP sensor failure? I have noticed (possily...) a slight drop off in performance and an increase in fuel consumption. Would that be consistent with a sensor? Alex.

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