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Question edited for clarity.
Question moved to model category.
This is a strange code that doesn't appear to have one definitive reason, it's a bit of "you have a bit of a problem, but we aren't sure". Just Answer dot com mechanic says it is the MAF Sensor.
Specifications per VADIS 1993 Volvo 850 2.4 Non Turbo:
Ignition Coil, power stage:
Resistance between terminals 1 and 15 (primary winding):0.5-1.5 Ohm
Resistance between terminals15 and HT terminal (secondary winding): 8-9 kOhm
tHIS WILL TURN ON AND KEEP THE CHECK ENGINE LIGHT ON, MOST OF THE ENGINE BLOCKS ARE THE SAME BUT ARE BUILT A LITTLE STRONGER TO WITHSTAND THE TURBO, IF HE CONNECTS THE TURBO AND YOU DONT BEAT ON THE MOTOR I THINH YOU WILL BE OKAY, HAVE HIM USE ALL THE OLD PARTS LIKE INTAKE INJECTORS OIL PAN EXHAUST MANIFOLD AND I THINK IT WILL BE FINE, HOPE THIS IS HELPFUL,
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 :)
The silly answer is: Of course! You can do anything with enough time and money. Take it apart, put in dished pistons to get the compression ratio down to where it will tolerate boost. Spend a kings ransom on parts to mount the turbo and manage the engine. Or, The smart answer; No! It makes no sense, sell it and buy the turbo flavour. They are actually fairly cheap, way less than building it and you get all the upgrades that come with the turbo option.
This is what my code scanner says:
P0234 Engine Overboost Condition
If you have a non-turbo model, then it's probably something else. It may be a bad turbo overboost switch. My S80 is non-turbo but I had an overboost switch go out on my Mercedes and it shut down the turbo but I had the same error message. Good luck!
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