2002 OZ Rally, 2.0L, AT with no passing gear - Mitsubishi-Forums.com
 
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post #1 of 9 (permalink) Old 03-13-2017, 10:28 AM Thread Starter
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2002 OZ Rally, 2.0L, AT with no passing gear

2002 OZ Rally Lancer, 16v 2.0L engine, Automatic transmission

Did a little tune up on the Lancer yesterday by checking and re-gaping the plugs. Checked the condition of the wires and sockets which looked good for having almost 217,000 miles on them. Originals as far as I know, bought the car used. I did find that the panel attached to the intake manifold that holds the three solenoids had lost its screws so I managed to get that reattached after plenty of choice words. Luckily both bolts had fallen into the intake manifold's crevices and stayed for many miles.

When I took it out to test drive it afterward I discovered that, while it did have better acceleration and the stuttering seems to have gone away I could not get it to drop down from O/D to passing gear when I punched it. The engine simply stalled until I took my foot off the gas and then things went back to normal. I did make sure the carpet wasn't bunched up behind the gas pedal as it seems to usually do. Is there a vacuum assist or engagement for the passing gear on these cars? I've checked to make sure all vacuum lines were reconnected in their correct places and secure, especially in the areas I was working on.

There are two error codes that have been showing on the reader for quite some time - P0421 and P0401. First catalytic converter is out of specs and the EGR is showing low flow on the valve but I've tested valve while the engine is running by applying a little suction to the valve diaphragm and finding that the engine all but shuts down so I know the actual valve is good. The EGR solenoid's coil tests good, too, with ah ohm meter but when I check to see if the solenoid ever allows vacuum to go to the EGR valve while driving no vacuum is ever shown on the gage I've rigged up. These codes have been showing for a few years and have never affected performance or fuel mileage so I've left them alone. Out here in W. Texas there are no emissions tests so it hasn't been an issue unless these codes can devolve to produce the "no passing gear" problem I've found.
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post #2 of 9 (permalink) Old 03-13-2017, 11:28 AM
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Some of the more obvious to double check... Did those get a invecsII style transmission with the manual shift mode? If so manually run through the gears make sure all of them are engaging. Also double check that you didn't shift into 3 or something instead of D.


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post #3 of 9 (permalink) Old 03-13-2017, 05:02 PM Thread Starter
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No, as far as I know there's no option for manually shifting this transmission unless you're speaking of simply going from D to 3 -2 - 1. Getting up to speed on the highway you can tell it goes through all the gears like it should. You can manually shift out of O/D to 3 but that's the only way to get it to do so unless you're slowing down.
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post #4 of 9 (permalink) Old 03-13-2017, 05:06 PM Thread Starter
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No, there doesn't appear to be any option to manually shift this transmission unless you're simply talking about manually going from D to 3 - 2 - and 1. No clutch involved. Getting up to speed on the highway you can feel it go through all the gears and settle into O/D but in order to get it to drop out of O/D for passing you have to manually, at the moment, move the shift handle to 3 and then back to D.
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post #5 of 9 (permalink) Old 03-13-2017, 05:08 PM Thread Starter
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Evidently this forum doesn't edit old posts like others do. Tried to edit the first one and all it gave me was a blank text box so I retyped everything.
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post #6 of 9 (permalink) Old 03-16-2017, 02:54 AM
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Well I would clear the codes and then drive for a day and see what comes again.
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post #7 of 9 (permalink) Old 03-16-2017, 04:01 PM Thread Starter
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Will do but they've been cleared before and came right back. I know the first catalytic converter's out. Replaced the O2 sensor a couple of years ago hoping that was the problem but that P0421 code came right back again.

The engine's stuttering and stalling problem came back again but this has not set a misfire code yet. What would be a way of checking to see if one or both of the coils need replacing? An old timing light?
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post #8 of 9 (permalink) Old 03-20-2017, 12:25 PM Thread Starter
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I have a question for the same car regarding the Ignition Speed Control stepper motor on the throttle body. What is the normal length of travel for this part?


The one that I had in the TB originally barely moved. You could feel the stepper vibrate or thump a little when you turned the key to the On position but the length of travel is about 1/16" more or less. You have to watch it to see any movement at all. Found out how much these little suckers are so I went to the junk yard and pulled a TB off of a 2005 model that looks identical to the one on my 2005, pulled the ISC off of it and tried it on my car and the travel length was pretty much the same. I've had a feeling that this may be a contributor to the stuttering and low idle problems on mine but can't find much information on this part.
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post #9 of 9 (permalink) Old 03-20-2017, 12:28 PM Thread Starter
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correction - my Lancer is the 2002 and this is a ISC valve.
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