Trouble with my cars ECU

ALL B230 motors (excluding the B234) are non interference motors. The answer in the first space is incorrect!

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Coolant type Volvo Forums Volvo Enthusiasts Forum

Hello. i have owned many 740's, 240's, 122's, and 850's. I have done my fair share of transmission swaps. The transmission tag is located right above the trans-oil pan and directly below the od seloind on the drivers-side. if your volvo 740 is a non-turbo, the transmission is AW-70L, if it is a turbo-model then it is AW-71L. Good luck :)

You bring it to me along with the new turbo. OR you take it to another mechanic. It will require a full set of mechanics tools and careful attention to detail.

Go to an auto supply store like PEP boys or Advance Auto, etc., and buy a Haynes Repair Manual for the 740. You may be able to consult one at your local library for free. Even if it doesn't cover your model year, the replacement instructions are pretty much the same for all years. in fact even a 240 Volvo manual would be essentially the same. Pay particular attention to the installation instructions....you have to slide the pump on, and then rotate it a few degrees clockwise to make the upper o-ring seal. Good luck!

85 octane is all you need unless you are at sea level then use 87 octane...

Try replacing your fuel pump relay,

It is a right hand thread and you usually need an impact gun. Take the fan out of the way, to give you more room, I have found that helps.

not really any special tools vill be required.  You will need access to the underside of the car.  And the parts are really expensive.

we have the same car, i would have a mechanic check the ECU. thats the first step in finding out what is wrong and why its burning so mutch fuel. it could also be your air filter, but then agian, you wouldnt be burning a tank of gas a day. well hope you get it fixed.