Depends on model and fuel system. It could be as simple as a dirty air filter, the O2 sensor can be tired, it could have a leaky injector, the fuel pressure regulator could be leaking, the fuel return line could be plugged, the coolant temp sensor could be bad, or any number of other problems.
What are you looking to fix. I am a Volvo tech. 89 Volvo 740 turbo runs rich blows black smoke all plugs are black but are not oily rev it up change plugs. wires. coil. air filter.
They are designed to run on 87. Most who I speak to run 89
I have that motor in my 89 Volvo penta boat. But also know that it's in 86 to 89 chev gmc trucks.
1" Wrench or socket on the bottom of the pan.
I'm trying to do a tuneup on my 89' 740 Volvo with turbo. Having problems getting the distributor rotor off?
You don't have to be rich to run for political office.
Engine is running rich
Yes you have to be rich in order to run for president
it was in 19 89
That depends on what the car was designed to run on. If it was meant to run on 87 octane, using 89 octane can make the mileage worse.
no it cant cause the pm5 from 87 is fully carbd and the 89 its carbd injected