Maps

Greenie · Post by **Greenie** » Mon Oct 16, 2006 5:04 pm

Hi can anyone help, I have just purchased a car with the Megajolt system install and I know nothing about it. It is on a car with a 1.8 Zetec lump and 4xR1 bikes carbs. I am looking for advise, it runs great at low rev's (around town but open her up and she starts to miss-fire at between 3-4000 revs. Can anyone help?

MartinM · Post by **MartinM** » Mon Oct 16, 2006 6:44 pm

...misfires between 3000-4000 rpm (ie gets better at higher revs) or misfires *above* 3000-4000 rpm (ie never gets better)?

Greenie · Post by **Greenie** » Tue Oct 17, 2006 1:59 pm

The missifire becomes worse as you poen the throttle further from the revs mentioned, it flys upto that time and it tends to back fire a goes when on full throttle. Around town it is great and respnsive but on an open road on a long straight it's bad. Need to find another balance between the two?

MartinM · Post by **MartinM** » Tue Oct 17, 2006 9:21 pm

Does it happen when stationary (just increasing the throttle) or just when driving, or both?

Could be a map problem, could be an installation problem, could be a fuelling problem, could be something else entirely!

Are you able to connect to the MJLJ, retrieve the map from inside it and post it here?

Have you checked all the wiring is sound? Is the wiring between the MJLJ and the EDIS (the PIP and SAW lines) using shielded cable? Similar for the cabling between the VR sensor and the MJLJ. If yes (to either) can you see which ends the shield is earthed at - should be the MJLJ end ONLY. An error in earthing can lead to high rpm instability.

Don't know how to fault find a fuelling problem - sorry

Greenie · Post by **Greenie** » Thu Oct 26, 2006 4:42 pm

I only happens when driving, I am a bit wary of connecting via my LAP TOP, I am very naive to this system. Do you know what programe is required to run the system?

Autosport Labs

Maps

Maps

...misfires between

Maps

Does it happen when

MAPS