420A 420A Oil light on/off

[Arnie]

Hey guys I was wondering what would cause the check oil light to flicker on and off?

** Oil is full I always check it **

It comes on when I drive sometimes for like half a second it will flick on then turn off as it turns off.

Would something be lose for it to do that or a fuse or a wire?

 

[undefined0000]

Hey guys I was wondering what would cause the check oil light to flicker on and off?

** Oil is full I always check it **

It comes on when I drive sometimes for like half a second it will flick on then turn off as it turns off.

Would something be lose for it to do that or a fuse or a wire?

Well Oil pressure is usually [sending unit] ----- [ecu] ---- [dash], so something in there is going bad. Sending unit sends resistance to the ecu, so if that's not connecting right, that could be the issue, or you've got a short in the ecu to dash connection. As long as you actually have oil pressure, its more than likely an electrical problem, get out the multimeter and hunt around. You'll have to get the factory spec for the pressure sending unit and what resistance means what pressure.

 

[Shake_Zulla]

Does this happen at random or only at idle?

 

[92AWDHX40]

Sounds like a bad wire or a connection, could be the sender i got a aftermarket one works great , clean your wiring up at the connector and check for grease and oil.