Autosport Labs

Not a loose connector. I think i may have sorted it. It seems that when i have the engine running my peddle goes nowhere near flat out as it redlines at half throttle, but the butterfly valves in the carbs are only half open. It does seem very rich so this may sort itself a bit when i get it tuned. ...

Ok this is what readings i get. First, with ignition on and engine NOT running. TPS> brown wire 0v and 0ohms to chassis (ground) TPS> yellow wire 4.99v (+5vDC) TPS> white wire ranges from 0.6v to 3.9v when opening and closing the throttle. (vRef) Now with the engine running TPS> brown wire 0v and 0o...

tach out of the mjlj is at permanant 12v dc. that doesnt seem right at all.

Just reversed over my multimeter so will have to report back further tomorrow on that one!!!


Thanks for the help. and btw are you martin millener? if so you built my mjlj!!

Hi Martin. Sorry for the vagueness. Try this: When mjlj is powered up but engine is not running, I get a tps reading on the configurator software. (this can be calibrated and seems to function correctly.) If i now start the engine, the software shows the tps position at 0% no matter where the thrott...

Just installed my mjlj and calibrated the tps with the engine off but mjlj on.

it works fine when the engine isn't running and shows a healthy range of movement.

As soon as i start the engine the tps goes. The rev reading shows on the computer but not when it is connected to my digi dash

any ideas?