Question about 1987 Mitsubishi Passenger
We have a Mitsubishi RVR sports gear: Automatic Transmission, gasoline, Two Tone, Converted, JDM, Left hand steering wheel I am based here in the Philippines.... Why is it that when I start the engine the car always rattles and sometimes the engine would suddenly stop. So I have to start it again.... And whenever I have to take the car for a cruise... the engine stalls at about 2000r.p.m. and it still shakes so i had to step on the gas even ..i find this very dangerous because it suddenly accelerates and we are somehow ''thrown out of our sits''sometimes i had to turn off the air conditioning systems and put the transmission to L and second gear to solve the problem but when i turn it on again it goes back again.... but the problem just suddenly disappears.....i find this very disappointing and stupid because i even have to burn off large amounts of gasoline just to solve this problem that occurs everyday.. i just want to know..... Whats interfering with the engines performance?? Pls help us because this will be very disappointing for us in terms of engine performance and even massive drops in fuel economy... I did some research and some had mentioned to me the ''mass airflow sensor'' Do you think that this has something to do with the cars problem.... Does a Mitsubishi RVR sportsgear have a mass airflow sensor???? Pls....I Need your expert advice... Thank you very much....
Mine is also a 4D56, struggles to go above 200rpm, partly due to engine fatigue (at more than 140,000 miles), but the main problem could be the fuel pump, not properly calibrated with the engine fuel intake system. Take the car to a garage and ask them to check the pump. also explains he rattling when idle.
Posted on Jan 13, 2011
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Posted on Jan 02, 2017
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following are the general instructions on the start of diagnosing any
electronically controlled engine or transmission problem.
engine and the automatic transmission (transmission control is only
for automatics, engine is still computer controlled no matter the
transmission type) in this vehicle are computer controlled and in
most cases when a fault occurs a fault code is stored in the memory
of the computer control module. There are exception to this, such as
the Mass Airflow Meter and fuel pressure problems. What must be done
is to have all the basic testing done such as a scan of the system
for fault codes as well as a check with a live data scanner tool for
engine functions that are not within range of normal, a trained
technician is required to know what is correct and what isn't, then
based on careful diagnostics done from a factory repair manual the
correct part is replaced or the wiring repaired or the computer
replaced (known as the PCM), which is very rarely the problem. Other
basic checks must be done as well such as mechanical problems with
the engine as well as engine state of tune and mileage on the engine.
The transmission can have mechanical issues as well such as no gear
engagement at all or a failed pump or other pressure related
problems. Also engine mechanical problems ca cause many
drive-ability related problem such as rough idle and other symptoms
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