Hello all,Few issues with a new to me V70 Topic is solved

[JMW92]

Hello from the UK,

So I bought a V70 2.4 non turbo as a run around whilst my Seat Cupra DSG mechatronic unit was sent off for repair. It had a couple of problems that I fixed, thermostat, a few bulbs ect. but now Ive run into a problem that I think may be the ETM any advice would be appreciated.

Just for reference here I changed the CAM BELT just after I bought the car as it was on 95k miles, I checked the timing many many many times whilst doing it and it started up and ran fine, I know it (Hopefully) cant be connected to my problem unless I'm missing something but worth mentioning.

So im driving along everything is fine about 20mins into a drive just after pulling away from a junction the throttle sort of sticks (It may be a limp mode of some kind) so I pulled over and put the car in neutral the revs flux from 1-3k and no response from the throttle, turn the car off wait 10secs or so restart the car and its fine again..... strange

I noticed the engine wasnt warming up as quickly as it should so I changed the thermostat (Good call it was stuck 60% open) and I removed and cleaned the Throttle body after hearing of the problems. Took it for a test drive now the car warms up much faster however the same thing happend about 5-10 mins in to driving this time, it reset but happened about 2mins after again. Im getting the following fault codes when reading it through torque pro.

P0032- O2 sensor (However when I cleared the codes this reset and didnt come back until the fault happened when driving, so I think the sensor is actually okay)

P0123- Throttle/Pedal Position sensor/Switch A curcit high input

P1610 - throttle unit internal fault; signal too high

P1651 - control module internal fault; faulty signal


Now I am taking it that these are ETM fault codes, I am an engineer and can't believe I am asking this but It can't be related to the timing could it, it doesn't make sense in my head for it to as it would run horribly (or not at all) and wouldn't drive for 20mins or so and then throw a wobbly thought it worth asking as I noticed a VVT pully on when I was changing the belt

Any help much appreciated - Oh and HAPPY NEW YEAR

[chrism]

What year is your car? Volvo used a couple different kinds of throttle modules, some good, some not so good.

[JMW92]

What year is your car? Volvo used a couple different kinds of throttle modules, some good, some not so good.

Totally forgot to put that in its a uk x reg late 2000
/2001 its the magnetti Marrelli etm it has no yellow sticker on it so I presume its the original. I hear the pentio tracks wear out and can be replaced with a contactless sensor there are plenty of repair kits on ebay. I would prefer to send it off as a unit for a full refurb but that seems hard to come by in the uk.

[precopster]

With the codes your car is producing it is looking more like a heat related ETM logic board fault. The contact-less conversion would benefit you if you had P0120 or P0121 which are sensor 1 & 2 reading faults. Do check that the flap is free to move from rest to fully open by hand and if the bore is dirty clean it with a rag soaked in throttle/carby cleaner.

If cleaning doesn't help get hold of a used unit (preferably a yellow stickered example which will be much newer) from another non turbo unit and fit the throttle then limp it over to a Volvo dealer where you will ask them for an ETM reload so the firmware in the ETM will be changed/programmed to suit your car.

The newer ETMs can be identified by their build date which is incorporated on the sticker in this format example: 06W34 Meaning 2006 build week 34

[JMW92]

With the codes your car is producing it is looking more like a heat related ETM logic board fault. The contact-less conversion would benefit you if you had P0120 or P0121 which are sensor 1 & 2 reading faults. Do check that the flap is free to move from rest to fully open by hand and if the bore is dirty clean it with a rag soaked in throttle/carby cleaner.

If cleaning doesn't help get hold of a used unit (preferably a yellow stickered example which will be much newer) from another non turbo unit and fit the throttle then limp it over to a Volvo dealer where you will ask them for an ETM reload so the firmware in the ETM will be changed/programmed to suit your car.

The newer ETMs can be identified by their build date which is incorporated on the sticker in this format example: 06W34 Meaning 2006 build week 34

Thanks for the info, it seems you have a very good understanding of these etm, I was wondering why it only did it when warmed up I originally thought Mass airflow sensor as they are used in a different way when the car is warmed up but theres no maf codes so was abit stuck. I have already cleaned it, made no difference.

Ive found a yellow stickered one I can get and it looks identical but non of the numbers are the same....

Mine has a white label and the following numbers:
11A779M5A. Barcode
00w230101. 9497244
Magnetimareli. Barcode
BO. 65cfm9
Ah.0013536.b

The yellow one looks the same even the wiring plug and has the following numbers:

410C0UW4J. Barcode
09W280201. 8644347
Magnetimareli. 65CFM-2
BO. Barcode
AH.0012381.E

Will the yellow one work as the only numbers i can see that look the same are 65CFM

Help massivley appreciated, sorry for the bad spelling on my phone in a rush before the other half kills me haha

Thanks again
Jonjoe

[precopster]

That's the right replacement part for your car. Best thing to do is fit it and book in to a Volvo dealer. You can ask for an oil change and also ask for a software update telling them the car isn't running quite right. They may know what you're up to but it's worth a try as Volvo has a free "software for life" policy. Not sure if this applies in the UK (check the local forums) however if your car has outdated software in other systems they will update the ETM along with those.

[JMW92]

That's the right replacement part for your car. Best thing to do is fit it and book in to a Volvo dealer. You can ask for an oil change and also ask for a software update telling them the car isn't running quite right. They may know what you're up to but it's worth a try as Volvo has a free "software for life" policy. Not sure if this applies in the UK (check the local forums) however if your car has outdated software in other systems they will update the ETM along with those.

Thanks very much for your response, it is massively appreciated.
Thats a good idea about a software update as we also have the free software for life policy and I gather the car will be running on outdated software (16YO only indi stamps in the book) as you say its worth a shot
I'll give you an update when its fitted, with a bit of luck it will be good news!

Thanks again

[JRL]

It does not apply to the rest of the world.
Probably your ETM, if it's used just install it and see what happens.
Make sure you CAREFULLY clean it before install

[precopster]

The 2001 non turbos ALWAYS run a 8644344 or 8644345 so the chance of a 8644347 having 2001 NON TURBO software in it is extremely rare so that's why I suggested going straight to the dealer. ANY Magnetti Marelli Volvo ETM can be programmed for any car regardless of part number. I've programmed hundreds of them.

In some instances they won't even start the car with incorrect software so I suggest bolting the new one on in the Volvo carpark if it won't run the car (5 minutes' work on a non turbo) 7 mm and 10mm sockets required.

As you have an original white-stickered example you may need to deal with the starter bracket on first removal. DON"T put the new one back with the wire behind the starter as that's a waste of time. Use the OLD gasket each time. This is a non turbo and they only run vacuum so they won't leak. I have re-used my original high quality Volvo OEM gasket over 200 times in my non turbo. On my own vehicle I don't even tighten the 7mm clamps on the rubber plenum hose as the vacuum and soft rubber on that hose take care of any potential leaks.

[JMW92]

The 2001 non turbos ALWAYS run a 8644344 or 8644345 so the chance of a 8644347 having 2001 NON TURBO software in it is extremely rare so that's why I suggested going straight to the dealer. ANY Magnetti Marelli Volvo ETM can be programmed for any car regardless of part number. I've programmed hundreds of them.

In some instances they won't even start the car with incorrect software so I suggest bolting the new one on in the Volvo carpark if it won't run the car (5 minutes' work on a non turbo) 7 mm and 10mm sockets required.

As you have an original white-stickered example you may need to deal with the starter bracket on first removal. DON"T put the new one back with the wire behind the starter as that's a waste of time. Use the OLD gasket each time. This is a non turbo and they only run vacuum so they won't leak. I have re-used my original high quality Volvo OEM gasket over 200 times in my non turbo. On my own vehicle I don't even tighten the 7mm clamps on the rubber plenum hose as the vacuum and soft rubber on that hose take care of any potential leaks.

Good Evening all,

Just a quick update, I have installed the new yellow sticker'd unit (I was wrong it was made in 2010) installed it started the car the idle started high then settled, left it for 10mins on tickover then tired the throttle it responded well, very well, it did take a sec to settle down after a couple of small throttle inputs and stayed around 2k until I pressed the pedal again however I thought only one way to find out (said a little prayer crossed fingers ect) and took it for a 15/20 test drive, it drove fine in fact if anything it feels like a new car the throttle response is soooooo much better, the only code I got after a couple of restarts was the O2 sensor error, so I suppose the 02 sensor needs replacing as well but that's no big deal as I think its the one that's on the exh manifold! I will take it on a longer trip tomorrow to see if it crops up (Fingers crossed ect.)

I take it the fact that it worked means it may not need the software updating? To be on the safe side I may go get the whole car software updated as I dont think its been done in a long while
I will let you know after my longer trip then marked it as solved.

Thanks for everyones help here it has been massively appreciated! If your ever in the UK, Yorkshire area or Portsmouth (Im a marine engineer) and want a beer give me a shout ----- Btw the ETM cable is a right t*** to get from behind the starter motor haha!