Mitsubishi Diamante

I am researching this myself due to a faulty alarm that keeps me from starting my own car. As soon as I get the answer I'll pass it along.

Pulley stop truck from starting

In a 2000 Mitsubishi Diamante, the air conditioner filter is typically located behind the glove compartment. To access it, you may need to remove the glove compartment by opening it fully and disconnecting any clips or screws. Once removed, you can slide out the filter for replacement or cleaning. Always consult the vehicle’s owner manual for specific instructions regarding your model.

P0300 Diagnostic Code - Random Misfire

Symptoms.
Engine may stumble or miss
Engine may be hard to start
you may notice no issues

Cause
Failing spark plugs or spark plug wires
Bad coil or coil pack
Failing oxygen sensor(s)
Bad fuel injector or more than one
Stuck exhaust valve
Bad catalytic converter
EGR valve or valve passage clogging
Bad camshaft position sensor
Bad PCM or ECM

The Fix
Best first action is a tune up, new plugs, wires, inspect all hoses and wire connections then reset the code. If it returns you will need to narrow it down to a system, coils and coil packs should be tested, catalytic converters for function ( do you smell rotten eggs?). A misfire that jumps cylinders could indicate a lean condition, do you have any other codes along with the 300? this will help clue you in to the source, check valve function to make sure they are opening and closing fully.
This is probably pone of the most difficult codes to troubleshoot, so start with the basics and work your way into the more expensive options, in many cases a good old tune up solves the problem, back it up with a fuel system cleaning and see where you stand.

just timing your belt, replace yours sensor cam an crank, and buy a news spark,sparkwires,coil ignition and your car go be ready.

ing.dany mancias

123456!!

Idle of 2000 rpms might be some kind of problem. Do you have any warning light on the dashboard? have the car been scaned?

1) Well, when the ignition module (Engine Control Module), detects a malfunction, due to some loss of signal, or sensor related problem, injectors, etc., there is a safe-function to have the engine working beyond optimal control; that is, minimum or default conditions for operation. In other words, engine idle-up = engine control failure.

2) When the A/C system button is ON, and the Compressor is working due to interior room temperature conditions, along with both fan coolers (radiatior and condenser), the ISCV (Idle system control valve or stepper motor) it is also commanded by the ECM to increase the rpm up to near 950. However that is not your case.

3) Other systems, like steering wheel operation, electrical consuming, like lights and so on, have the ECM to increase idle rpm.

4) Some important function that has the engine rpm decrease is the temperature control, done by the ECM. The temperature sensor, a unit gauge located in the thermostat housing, informs the ECM about the engine temperature. Once it warms up, after cold starting, ECM commands the Idle control Stepper Motor to decrease rpm to normal value, which is around 700 +/- 50, if no service is ON, and around 950 if A/C is on. If this sensor fails to inform such changes in temperature, then ECM might never commad the rpm decreasing.

5) the Idle control stepper Motor itself, which is responsible for proper idle rpm, may be the problem. The proper inspection of such part must be done. It works with 6-wired coils for the stepper motor, using around 6 volts. It is easy to be taken out and been inspected to assure free moving of the acting part as a valve. Check also the tightness of the 6-wired connection.

6) Finally, if everything goes just fine, there are two screws to check, having the stepper motor disconnected:

_ there is a screw covered by a rubber cap controlling a mechanical valve to let free air-by-pass for minimum idle rpm, as of no Stepper motor working, which is located top of the throttle body.

_ and a factory-adjusted screw that works as a stopping for the throttle mechanism when you release the pedal. It is located botton of the Throttle body; the more it is turned clock-wise, the more will be idle rpm with no acting of the stepper motor.

Hope this helps.

lower ball joints are really called part of the lower control arm,so disconnect battery,raise vehicle,remove sway bar links from lower control arms,disconnect ball joint stud from from steering knuckle,MARK POSITION WITH WHITE PAINT, remove inner mounting frame thru bolt and nut.

THEN remove the rear mounting bolts,remove clamp if there, remove the rear rod bushing ,if servicing,may as well since your there. THAT's IT.

Remember be SAFE!

The SRS light in my 1999 Diamante came on because my right rear Brake ABS unit needed to be replaced. It is most likely something to do with the ABS braking system but it should be coded out to be sure.

Your ECU Module if your trying to replace it or find it is on the passenger side behind the glove box. You have to take your glovebox out and its in the upper right side. should be a silver box.

6

Fuel is material which is processed (usually 'burnt') to produce energy - heat or power.

To move a car takes energy - and that has to be supplied by the fuel.

Simply squeezeÊthe unlock button on the key less remote, insert the key in any outside lock cylinders and turn and then turn to unlock twice.

Yes they will I have a Diamante with dubs the biggest you can get with out having problems is 20inX8.5

on a 2000 3.1 it is on passenger side between firewall and engine!! if a four check right by right strut tower. the cap has an "L" on it!!

the head lights you just pop the hood open and remove light from socket and plug in new bulb without touching glass of bulb with your hands and put back in * ( i have small hands and it was hard for me), the fog lamps you have to do from underneath by removing a few body clips and then you gain acess to them.

if you are referring to the whole headlamp assembly because they are fogged over really bad as mine are do a Google for headlamp assembly i found the for 135 bucks a side for the headlamp assembly and like 40 for the fog.

hope this helped

Temperature control in dash by heater core is broke.

Trouble code P0300 means:Random/multiple cylinders misfire detected

If your Diamante is the Dohc 6 cyl. motor in it then you have to remove the entire intake manifold to replace the back 3 plugs I did it in about 4 hours with not many tools and I am a female. So it can be done.

Did you check the windshield wiper tank? I also owne a 92 Diamante, I thought at first that it was my coolant, checked my owners manual it was, like said b4 washer fluid, wich was full, I simply unpluged the sensor, not the pump but the sensor it is the plug on top of the two to choose from, bingo light is out no more worries

Usually the lighter is shared with something else (like the horn). Check to see if there is something else not working and look for that fuse.

you have to remve the intake manifold

they should be 6x9 in the rear and 6 1/2 in the front.....

does a 1999 mitsubishi diamante with a 3.5 engine have a non interfrence engine

take it to the shop:)