WE need to replace the ecm on our 2001 v70 but can't seem to find a way to get it out without damaging other things. Please help!

 

Really REALLY NEED HELP PLEASE!

 

I assume you don't have the special tool?

The ECM is programmed to the car, too, and rarely fails. Are you sure it needs an ECM?

 

No we don't have the tool. we've been told it does but we don't know for sure. the car will crank, the car will run but when you put in gear it has no power. does not "rev" up when you press the accellerator.

Any help would be appreciated.

Thanks,

 

You need to find a indy volvo shop with a vida/dice and have him read the codes for you. I believe that you can't just plug and play any ECU they are VIN specific

 

Thanks for the help. We do know that they are vin specific and we know where we can order one that we have to send the old one and the key so they can program it to work. We will see if we can find someone to check the codes again.

 

ok got the codes most of it is no fault found or items found active. Here is a list of items "found not active"

ECM-210F Front heated oxygen sensor (H02S) - faulty signal
ECM-2200 Rear heated oxygen sensor (H02S) - signal too low
ECM-3502 Misfiring - Cyl 1
CEM-1A52 Communication with DDM control module signal missing
REM-8D11 High mounted stop lamp faulty signal
DDM-0025 Mirror motor signal missing
DDM-0047 Power supply Signal too low

If we replace the ECM and have it programmed should this solve our problems? Currently the car will crank and run but when put in gear has NO POWER!

 

I am not at work so I can't reference those codes right now, but I very much doubt it's a bad ECM. I would check for vacuum leaks first.

 

ok thanks. how is the best way to check for vacumn leaks

 

must fix this volvo now. my husband's truck has bit the dust and we are borrowing a vehicle for him to get back and forth to work. We have a 2001 Volvo V70 that will crank and run but has NO POWER when put in gear. Can you please tell me what I need to check 1st and how do I check for vaccum leaks? PLEASE HELP! DESPERATE

 

I'd chase that misfire code first. Make sure the spark plugs are good and the coil is firing. That is most likely the cause of lack of power.

 

The shop that read your codes should have been able to reset them as well. You have a dozen of so computer modules in that car that store the same codes in multiple places, even after they have been rectified. A good shop knows that the codes must be deleted from each module in a certain order to erase them completely. Then you you should go back and have them read again after a few weeks, to see what returns, then you can begin to search out your problems. I highly doubt that your ECU is faulty.

 

They don't all set the same codes. Each stores its own codes. Misfire codes and oxygen sensor codes are stored in the ECM and only the ECM.