1985 Dodge 600 turbo 2.2 mpfi - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!
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post #1 of 3 Old 04-19-2017, 08:41 PM Thread Starter
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Angry 1985 Dodge 600 turbo 2.2 mpfi

I have an 85 Dodge 600 with 2.2 mpfi engine, turbo. I just replaced the plugs, the distributor pick up, the rotor and cap. The old plugs were totally fouled with carbon, this thing is running so Rich it runs you out of the garage. I have pulled the TB to clean it and inspect the AIS motor which is the old gear drive type and clean it. I also have a new map sensor which is mounted inside at the passenger side kick panel on the ECM. What else would cause this engine to run so Rich?. I have not done the map yet, and it dosn,the act like vacuum leak.? Could it be an ECM problem with engine management?
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post #2 of 3 Old 04-19-2017, 11:24 PM
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Re: 1985 Dodge 600 turbo 2.2 mpfi

The first thing to do is check codes.

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post #3 of 3 Old 04-20-2017, 06:10 AM
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Re: 1985 Dodge 600 turbo 2.2 mpfi

On an 85 the computer is "stupid" and accepts all sensor readings as correct.

If you are running rich you need to check...
1)Fuel Pressure
Static Pressure = 53-57 PSI
http://www.turbododge.com/forums/f4/...-93-turbo.html

2)Fuel Pressure Regulator
Remove vacuum line from FPR and look for raw fuel in the line

3)Engine Vacuum...
16-20" HG at a manifold source and at the Map Sensor.
Low Vacuum to Map means the controller thinks there is more air so it adds more fuel = Running Rich
a)Tee a vacuum gauge inline between the manifold and baro sensor and then at the map sensor.
b)Engine vacuum needs to be 16-20" HG at idle
c)Snap the throttle open, vacuum should drop to almost 0 and then return to normal.

4)Map Sensor Calibration
Initial Baro Reading must equal actual barometric pressure and engine running voltage must be equal to actual pressure.
http://www.turbododge.com/forums/f4/...agnostics.html

4)Coolant Temp Sensor Calibration




85/86 Map Sensor Connector

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