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3 Posts
nights to all the forum I have a beautiful lebaron town & country 2.2 turbo, it does not start, they have checked everything and it does not start, and when it starts it chokes from excess gasoline, I really need help thanks
my lebaron town & country 2.2 turbo year 1986 does not start I need help
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Joined
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26,461 Posts
Welcome To TD!!!
1)If you are running that rich be sure the plugs are not fuel fouled and that the oil is not excessively fuel diluted.
a)If the plugs are fuel fouled the car will never start even after the problem is corrected, they must be cleaned or replaced.
b)If the engine oil is fuel diluted you should change it so you do not wash down the cylinder walls while cranking the engine during diagnostics, this could lead to a loss of compression and lubrication.
c)When performing diagnostics on anything other than the fuel system disconnect the fuel pump so you do not flood the engine again.
On to diagnostics...
2)Are there any fault codes stored in memory?
a)If Yes, what are the fault codes?
If no fault codes are stored in memory...
3)Follow these diagnostics
www.turbododge.com
If spark is present, continue...
4)Checking fuel pressure.
a)Connect a fuel pressure gauge (be sure you reconnect the fuel pump), Do Not Crank The Engine.
b)Manually actuate the ASD Relay and read fuel pressure, fuel pressure should be 53-57 PSI.
c)Is fuel pressure within specs?
d)Remove the vacuum line from the FPR (Fuel Pressure Regulator), is there any signs of raw fuel in the line?
If yes, replace the FPR.
www.turbododge.com
If fuel pressure is within specs, continue...
5)Is Cam Timing correct?
a)If the timing belt has lost teeth and/or jumped the car will run poorly or not start at all.
www.turbododge.com
If cam timing is correct, continue...
6)Map Sensor Calibration (Key On Engine Off (KOEO) and Key On Engine Cranking/Running (KOER).
a)The Map sensor is the dominant fuel control sensor, if it is out of calibration (but not enough to set a fault code) or engine vacuum is low or not reaching the Map sensor the car will run excessively rich.
www.turbododge.com
7)Coolant Temp Sensor Calibration
a)The voltage must be extremely high or low to set a fault code but if its calibration is incorrect it can make the car run rich.
b)Backprobe the CTS connector and read the voltage, the voltage translates to an actual temp, with the engine cold you should be reading the same as ambient temp.
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8)Engine grounds
a)Be sure all controller/body grounds are securely connected to a clean surface.
![Schematic Rectangle Slope Font Parallel]()
![Motor vehicle Vehicle Automotive design Automotive air manifold Car]()
Hope this helps, any questions, concerns, problems Please post back.
1)If you are running that rich be sure the plugs are not fuel fouled and that the oil is not excessively fuel diluted.
a)If the plugs are fuel fouled the car will never start even after the problem is corrected, they must be cleaned or replaced.
b)If the engine oil is fuel diluted you should change it so you do not wash down the cylinder walls while cranking the engine during diagnostics, this could lead to a loss of compression and lubrication.
c)When performing diagnostics on anything other than the fuel system disconnect the fuel pump so you do not flood the engine again.
On to diagnostics...
2)Are there any fault codes stored in memory?
a)If Yes, what are the fault codes?
If no fault codes are stored in memory...
3)Follow these diagnostics
No Start,No Spark 84-94 2.2/2.5L
*Before performing diagnostic tests check for any fault codes that may be present. If fault codes are present, clear them(battery disconnect) and crank the engine for 10 seconds and recheck codes. If codes are present repair them before continuing. *These tests can also be run on 91...
www.turbododge.com
4)Checking fuel pressure.
a)Connect a fuel pressure gauge (be sure you reconnect the fuel pump), Do Not Crank The Engine.
b)Manually actuate the ASD Relay and read fuel pressure, fuel pressure should be 53-57 PSI.
c)Is fuel pressure within specs?
d)Remove the vacuum line from the FPR (Fuel Pressure Regulator), is there any signs of raw fuel in the line?
If yes, replace the FPR.
Checking Fuel Pressure 84-93 Turbo
*The wiring may be different at the pump and the ASD Relay will be different year to year(84,85-87,88-90,91-up) but the test is basically the same. *MPFI (multi-port fuel injection) works on pressure differential across the injectors. *Since the injectors are exposed to manifold vacuum total...
www.turbododge.com
5)Is Cam Timing correct?
a)If the timing belt has lost teeth and/or jumped the car will run poorly or not start at all.
Cam Timing and Belt Tension 84-95 2.2/2.5L
This seems to be a major area of confusion and time lost during install or diagnosing as to weather the Cam is truly aligned properly. There have been numerous threads over time that the OP said the Cam timing was verified to be correct (checked it 3-4 times) and after a 4 page thread and...
www.turbododge.com
6)Map Sensor Calibration (Key On Engine Off (KOEO) and Key On Engine Cranking/Running (KOER).
a)The Map sensor is the dominant fuel control sensor, if it is out of calibration (but not enough to set a fault code) or engine vacuum is low or not reaching the Map sensor the car will run excessively rich.
Code 13/14 Diagnostics/MAP Sensor Calibration
I am posting this so I do not have to keep typing this over and over and will make it easier for members to find help on their own. Fault Code 13/14... No Change In Map Voltage From Key On To Engine Start Map Voltage Does Not Equal Throttle Position. Map Voltage Low Map Voltage High Map...
www.turbododge.com
a)The voltage must be extremely high or low to set a fault code but if its calibration is incorrect it can make the car run rich.
b)Backprobe the CTS connector and read the voltage, the voltage translates to an actual temp, with the engine cold you should be reading the same as ambient temp.
8)Engine grounds
a)Be sure all controller/body grounds are securely connected to a clean surface.
Hope this helps, any questions, concerns, problems Please post back.
Joined
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3 Posts
Thank you today I found endless problems yesterday, luckily I changed the oil, because I saw it very dilute, so to begin with I disconnected the gasoline pump, and I start looking for all the recommendations that you make today, I promise to keep you up to date with me Go ahead, thank you, I won't wait.
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