8-Valve 4G64 Not happy - Missing Cyl 2 and 4

I have been working on my 1994 Mitsubishi Mighty Max with an 8 Valve 4G64 for a few moths now trying to resolve a no-fire issue on cylinders 2 and 4. I have done everything except replace the ECU. Please watch and any help you can offer would be greatly appreciated!

[@tjr8063]

Yes there is cps camps 2 in 1. It’s built into the distributor on these motors (have the same one and no spark at all

[@austinmccallum5431]

can you show me the firing order please i need to see the distributor and which plug goes to which sparkplug??

[@harrylytle955]

Maintenance required light can be turned off by pulling tab off of right hand side of steering wheel dash and clicking a switch inside the dash

[@syrsknight]

I have an issue with #1 cylinder doing the same thing. Currently i believe i have blown the head gasket which im changing out now. Now on my way home not long ago, it was running fine with the exception of occassionally jerking. Anyways i turned of to get on a rd i live off of and all of a sudden i lost about 75% power could only go about 45mph and finally got home. It has cranked 2x since but now it wont. It will turn over but not crank. I have found that i have no spark on #1 plug so i changed out plugs and wires. I think that this issue is bc of the coil. Anyways my engine is a 1990 mighty max with a 4G64 non turbo. Suggestions please?

[@MONEY11721]

There is a wire that comes out of the firewall on the passenger side into the engine compartment and it has a dust cap on it ...take off the dust cap and ground that wire it is your timing adjustment for some reason these mighty maxes have that stupid thing and sometimes it helps

[@kazo17jay7]

Have you been able to fix your issue? Make sure that rotor under the distributor cap is in line with cylinder number one at tdc.

[@justnick87]

I think this might sound stupid but i think you got your 2 and 4 wire crossed. Looking at your video and pausing it looks like it. The firing order on the dizzy is 1-3-4-2. One being on the bottom of the distributor and moving clockwise. I've made that simple mistake more times than one. Another could be the coil pack is dead and dosnt have enough juice to complete a full rotation so skipping 4-2 and resetting on 1. Hope you got it running.

[@savvykronik4192]

I’ll second this. I have a 93 Dodge Ram 50, and I swore I did the firing order right but I took some deep breath’s and checked again and I was wrong. Double check that shit, No, triple check that shit

[@rssauto1878]

I have the exact same truck and i have the same problem. Did you attempt to time the distributor?

[@steveshepherd728]

Have you done a compression test

[@fabianoperes7335]

si no da marcha chekale el bendis yo tengo una similar88 no se si sea bomba electrika cheka k bobmbe suficiente precion. ojala puedas conpartir si lograstes solucionar el problema.

[@juancortez9125]

Make sure distributor timing is correct

[@harrylytle955]

It’s the computer on the passenger side under glove box

[@harrylytle955]

I know that’s the problem I paid 90$ to find out at the dealer

[@joeed2479]

By the light going off..id say the computer is communicating

[@markstafford399]

hey bud! same truck now! i have the same problem?? did you ever figure it out? thanks

[@ianforgie5711]

I have just done one, 1 and 2 were miss firing, you have a problem with cylinder head gasket.

[@OTZOLOTEPUNK]

What's a seal valve model for this truck?

[@predator0121]

I do not understand your question.

[@rushinwilliams80]

can someone tell me whats the cylinder head torque specs of this motor please

[@predator0121]

30 pound feet +90 degrees +90 degrees

[@chasecundiff6525]

Got fuel pressure?

[@OTZOLOTEPUNK]

Que tal amigo tengo mighty max en México y el regulador de ((gasolina es de 50psi)) así que la bomba debería tener mayor presión, quizá 55-65psi. Si tú motor está inestable puedes quitar la manguera de retorno del combustible, y colocar una botella para ver si regresa la gasolina, esa prueba la realice, y con la antigua bomba no se abría el regulador, en esa prueba tenía 30psi de presión, conseguí una nueva (no original) y tenía 45psi, la cuál tampoco abría el regulador, hasta que un amigo me prestó una bomba que tenía un vehículo la cuál claramente tenía mayor presión que la bomba que había comprado y con ese cambio realizó un buen trabajo, de la bomba que le instale no tengo ningún l dato porque se extrajo de un vehículo al cual se la pusieron de emergencia. Pero como te decía evidentemente tenía mayor presión que las otras bombas.

[@harrylytle955]

Take the computer out from underneath the passenger side of dash and you’ll see it’s shorted out. Go to junk yard and get another one!!

[@kendricksmith4523]

Check your fuel injectors if it's dead cylinder

[@private9315]

Did you ever figure out what was wrong

[@kendricksmith4523]

Change your egr valve

[@user-dn6ud8df3h]

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