Engine 850: B5252S/2.4/10v: engine cutting out when warm

[Chris_Rogers]

It would seem you have a fault with the MAF & the baro sensors.

However I would suggest you have a 20 Valve car with Motronic 4.4 ECU, not a 10V (Fenix) as the thread title suggests.

[wise old monkey]

defo a 10v 2435, it has 10valve across the top of the engine and on log book

[liuleichan]

Originally Posted by wickedteen

i do apparently have a air mass sensor, which these codes are relating to.

Not if you've got a 10v engine.

If it's a 10v engine, you'll have an air temp sensor, in the air induction tubing, going from the airbox to the throttle body. And you'll have a MAP sensor, which is located in the middle of the front bulkhead, just above the radiator (and has a white vacuum line running to it, from the throttle body area).

Neither are air mass meters. One measures temperature, one measures air pressure.

If you do truly have a MAF sensor, then you don't have a 10v engine, or there's something funky going on with the codes, or interpretation of them.

[wise old monkey]

http://www.partsforvolvosonline.com/...oducts_id=3509

so what is this then and what do the codes mean

[Nunchukhamster]

The MAF will be for the n/a 20V engine's.

[wise old monkey]

any ideas to these codes then, i didnt have time to wite down what they said
but i do recall it said MAF sensor

P0108
P0104
P0102
P0101
P0110

[wise old monkey]

so if i have no MAF sensor why do i get all these codes.

there must be someone on here with some knowledge of this

[Nunchukhamster]

Google is wonderful...

P0101
Mass or Volume Air Flow Circuit Range/Performance Problem
P0102
Mass or Volume Air Flow Circuit Low Input
P0103
Mass or Volume Air Flow Circuit High Input
P0104
Mass or Volume Air Flow Circuit Intermittent
P0105
Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
P0106
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
P0107
Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0108
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0109
Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
P0110
Intake Air Temperature Circuit Malfunction

[Chris_Rogers]

Originally Posted by wickedteen

defo a 10v 2435, it has 10valve across the top of the engine and on log book

What is the history of this car?

It seems like someone has fitted a 10V engine to an original 20 V car and tried to use the original 20 V engine management system.

[wise old monkey]

or could it be a problem with the readings, the guy in the garage couldnt get the box to comunnicate with the car it took ages, now if the codes are for a 20valve and it is looking for a MAF then that would be the reason for all the codes as there is no MAF on the car, so therefore it will be giving the wrong codes.

maybe they didnt have the correct OBDII chip for the 1996 850, i do recall them saying about using something which picks all codes up but specific to the correct car, im now thinking this is where they went wrong, they should have said they didnt have the correct chip but he mention the snap on box only has the v70 from 2000 onwards.

does this sound about right or make any sense to anyone, so i still have codes but need the correct box to read and clear them........