MAF cleaning??

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SteLeece
Posts: 3
Joined: 30 May 2017, 13:51
Location: Isle of Man
My Cars: Citroen Xsara Picasso Desire 1.6 16v 2008

MAF cleaning??

Post by SteLeece »

Help please. I have Citroen XSARA Picasso 2008 1.6 16v. When accelerating I get shuddering and if I don't change gear engine fail light comes on. I can restart / jump the engine immediately and engine light goes off again.
Am told the MAF needs cleaning, but cannot find to clean. Pictures would be great
I have the spray already...
Just need help. (Ive tried searching the forum and cannot find the answers)
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GiveMeABreak
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Re: MAF cleaning??

Post by GiveMeABreak »

Hi and welcome. Post up or PM your VIN as we don't know what engine you have, then I'll put you up a diagram specific to your Picasso. The 'Shuddering' may not be the MAF and if removing this, DON'T touch, poke or prod the very fine wire inside the housing.
Please Don't PM Me For Technical Help

Marc
SteLeece
Posts: 3
Joined: 30 May 2017, 13:51
Location: Isle of Man
My Cars: Citroen Xsara Picasso Desire 1.6 16v 2008

Re: MAF cleaning??

Post by SteLeece »

Thank you.

VF7**************[VIN obfuscated, can be read by forum staff] 98295165
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GiveMeABreak
Forum Admin Team
Posts: 36828
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5600

Re: MAF cleaning??

Post by GiveMeABreak »

Ok, now we have established that it's a 1.6i Petrol engine (TU5JP4). So it doesn't have a Mass Air Flow Sensor like the Diesels do.
So you might want to get a diagnostic done, but common issues with these engines can be the coil packs, or a dodgy temperature sensor, which can cause mis-fueling (much like a choke). Below is a diagram of where the more common sensors are located in case you need to check these out, but getting it diagnosed with a Lexia will help with the troubleshooting.

(5) - Engine Pinking Sensor
(6) - Speed Sensor
(8) - Air Intake Pressure Sensor
(9) - Water Temperature Sensor
Xsara Picasso 1.6i Petrol - Common Sensor locations
Xsara Picasso 1.6i Petrol - Common Sensor locations
Please Don't PM Me For Technical Help

Marc
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GiveMeABreak
Forum Admin Team
Posts: 36828
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5600

Re: MAF cleaning??

Post by GiveMeABreak »

The following is the throttle valve housing diagram and photo for reference: Item 4 in the diagram.
Xsara Picasso Petrol Throttle Valve Housing B
Xsara Picasso Petrol Throttle Valve Housing B
Xsara Picasso Petrol Throttle Valve Housing A
Xsara Picasso Petrol Throttle Valve Housing A
Please Don't PM Me For Technical Help

Marc
SteLeece
Posts: 3
Joined: 30 May 2017, 13:51
Location: Isle of Man
My Cars: Citroen Xsara Picasso Desire 1.6 16v 2008

Re: MAF cleaning??

Post by SteLeece »

Thanks for info Mr GiveMeABreak.
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