91 740 - The scene of the crime
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91 740 - The scene of the crime
1991 740 B230F LH2.4
Error Code: 2-3-2
Fuel Trim - Too lean or too rich to idle
My car idles and runs horribly -- very weak. The exhaust smells like fuel.
Not sure what my next step will be. Going to try again tomorrow.
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Background Story:
I guess I've never treated her the way she ought to be treated. I drove her from Georgia to Montana without skipping a beat. Every Thursday morning for a year, I cranked my 740 at 4:30 a.m., sometimes when it was 30 below, and drove her 100 miles over the Crow Indian reservation in the land where Gen. Custer met his demise. When the snow melted and would refreeze, I slid her around the corners in town for a thrill. But she's never missed a beat, no matter what I threw at her. Until...
In August, I took my beautiful ugly little 740 to get the oil changed. I should have changed it myself, but a trip to Yellowstone was on the menu with the visiting family and I was low on time.
The mechanic left the oil gun inside the engine when they tried to crank it. The aluminum nozzle on the oil gun was hit by the cam shaft and knocked around a bit. Three notches on the timing belt were stripped. The aluminum nozzle was dented and cut a tad. It is unknown if any tiny foreign aluminum shavings made it into the engine.
To salvage the situation, a new timing belt was pretty much forced onto the car by an old farm mechanic. I tried to watch what they were doing, but you can only do so much when you don't know how to work on cars.
Fast forward to today. A licensed Volvo mechanic put a new timing belt on the car along with a new idle pulley. It is now "safe" to drive but doesn't run right. I am afraid it was driven a ways with the timing slightly off, or with the idle pulley loosening.
Error Code: 2-3-2
Fuel Trim - Too lean or too rich to idle
My car idles and runs horribly -- very weak. The exhaust smells like fuel.
Not sure what my next step will be. Going to try again tomorrow.
__________________________________________________ ______________
Background Story:
I guess I've never treated her the way she ought to be treated. I drove her from Georgia to Montana without skipping a beat. Every Thursday morning for a year, I cranked my 740 at 4:30 a.m., sometimes when it was 30 below, and drove her 100 miles over the Crow Indian reservation in the land where Gen. Custer met his demise. When the snow melted and would refreeze, I slid her around the corners in town for a thrill. But she's never missed a beat, no matter what I threw at her. Until...
In August, I took my beautiful ugly little 740 to get the oil changed. I should have changed it myself, but a trip to Yellowstone was on the menu with the visiting family and I was low on time.
The mechanic left the oil gun inside the engine when they tried to crank it. The aluminum nozzle on the oil gun was hit by the cam shaft and knocked around a bit. Three notches on the timing belt were stripped. The aluminum nozzle was dented and cut a tad. It is unknown if any tiny foreign aluminum shavings made it into the engine.
To salvage the situation, a new timing belt was pretty much forced onto the car by an old farm mechanic. I tried to watch what they were doing, but you can only do so much when you don't know how to work on cars.
Fast forward to today. A licensed Volvo mechanic put a new timing belt on the car along with a new idle pulley. It is now "safe" to drive but doesn't run right. I am afraid it was driven a ways with the timing slightly off, or with the idle pulley loosening.
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Joined: Oct 2011
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The car idles at a very low rpm: 250-350.
Today, I determined that the car has a Rex/Regina System:
I am operating on the assumption that this is the ignition coil, "a wierd sort of amplifier-looking thing on the LH strut tower," that volvoclub.org.uk is speaking of.
Here is a video I made of my engine running:
1991 Volvo 740 Idle promblems - YouTube
It is slow to increase revolutions. When at a complete stop, pressing the accelerator doesn't have much of an effect. The car very slowly accelerates until it reaches maybe 10 mph. Then she accelerates better, almost as if my car has the world's slowest turbocharger.
When I drive on the interstate, my car downshifts, sometimes twice, to make it up hills.
I hope this further clarifies the problem.
Today, I determined that the car has a Rex/Regina System:
I am operating on the assumption that this is the ignition coil, "a wierd sort of amplifier-looking thing on the LH strut tower," that volvoclub.org.uk is speaking of.
Here is a video I made of my engine running:
1991 Volvo 740 Idle promblems - YouTube
It is slow to increase revolutions. When at a complete stop, pressing the accelerator doesn't have much of an effect. The car very slowly accelerates until it reaches maybe 10 mph. Then she accelerates better, almost as if my car has the world's slowest turbocharger.
When I drive on the interstate, my car downshifts, sometimes twice, to make it up hills.
I hope this further clarifies the problem.
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