Have a Mitzu with a nissan engine, NIKKI Regulator, everything is just like in the newer nissan's and cats. Engine rpm surges at times when you step on the throttle hard, if you ease into it it will rev fine and if you put a load on it(Tilt Bypass) it still runs fine,at times. Is intermitant,talked with one of our other service techs that works on alot of nissans and he mentioned maybe the MAF sensor or the injector,swapped out MAF on a truck that was running good,still acted up at times,replaced injector,still acted up so replaced MAF with a good one, Removed coils and checked resistance on all and all are the same resistance. Drained a little bit out of regulator when i first checked out truck, only has 1040 hrs on it and no codes or lights saying anythings wrong. Did think that maybe the wires to the plugs were shorting to the head as there was alot of dust packed around the base of the plug,blew out and tried again and ran good till running it up on a incline then would start surging again, this truck is in a feed mill and see's some really fine dust, air filter gets blown out on a regular basis.
Anyone have any other ideas, going to pull the plugs in the morning after it has cooled overnight and replace them, acts like an old governed engine would if the governor was out of adjustment.
Showing items 1 - 9 of 9 results.
IIRC the mitsi has the digital hourmeter, however on other trucks that only have an MIL light the electronic throttle surges rhythmically if the MIL light is burnt-out or removed. Not sure whether Mitsi or Nissan trucks do the same, but check the MIL light when powering-up the truck.
it is amazing to me that while this caused issues running, it did not cause a code.
I more often see the code this causes that the running issue.
Got it fixed, some intelligant person figured they could lower the throttle pedal stop and get more power out of it, causing the ELECTRONIC throttle to go past its intended position and causing this truck to surge. Sure is some intelligant operators out there. I am the service tech.
this is one you may find the quickest repair is to have the service tech show up, hook up a laptop, run the idle air vol. learn, check the assistant injector, and the last chance screen in the throttle body, drain the regulator, and check to see that you are not having a LPG pressure issue due to temp changes between the filling and storage of the LPG tanks.
you saying negative battery cable(s) ??
check the (-) cables and terminals,
and recheck the tightening in each one of them
i hope you can understand my poor english..
best regards
check the (-) cables and terminals,
and recheck the tightening in each one of them
i hope you can understand my poor english..
best regards
Is a model fg20n Mitzu S/N i dont have on me at the moment but can post if its needed.
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