Model MCP1F1A15LV S/N CP1F1-9N2036 keeps getting a code E-43 First time happened after a lpg tank change,cleared code drained Regulator of tar,did the A/F ration adjust thru the dash. Any one have this code and what problems are associated with it,runs fine when code comes up.
Showing items 1 - 5 of 5 results.
i have just the one truck so far that this has been showing up on, someone at the shop i work for suggested maybe the MAF sensor is getting dust/dirt on it if the truck is in a dusty enviroment. Could also be if the operator runs it till the tank emptys out and dies? This truck also only has about 1000 hrs on it. Think a couple of our other techs have a few trucks with this problem also. Some seem to show up after a tank change.
Looking at this same problem on a few units myself. I have checked the injector for bad orings, leaks at all of the intake system to no avail. I have also preformed the idle air relearn and the code keeps coming back. These are on new trucks with less than a thousand hours. Manufacture has stated this is a reoccurring problem and will likely come back. 10 trucks at the same customer 4 showing the codes since new.
kevin;
If the MAP sensor is a problem a code 44 will show. I know you don't see it listed; it's a number not yet released that has been added to the ECM fault registry. Start looking at a lost elec. connection to the ECM BV+ and also BV-. Also, just for curiosity what are the number you are seeing in window A2-13 Lower level? Are they running between 75 and 125? The other thing to look at in monitor mode would be window A2-04 Lower level LPG inj pulse along with A2-02 Lower level Bat volts at the ECM. Another point of curiosity was an Idle Air Volume Learn showing up in window A2-08 Lower level as having been Exe. ?
I am the technician, already did the alpha learn and code came back again after about a week,just wondering if anyone else has had this code and if i should be looking at MAF sensor or O2 sensor??
Kevin;
You are getting a fault of Apha being out of specification or more simply put the Air/Fuel ratio is off. Have a factory authorize tech go into technician's programming mode to see what the air/fuel ratios are operating at and/or execute an air/fuel learn and see if that solves your issue.
Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.
If you are having trouble using the Discussion Forums, please contact us for help.