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Matt
Matt, Mechanical Engineer
Category: UK Car
Satisfied Customers: 21377
Experience:  BEng hons Mech engineering, in auto industry 22 years
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I have an erratic average mpg display. Has it got a

Customer Question

I have an erratic average mpg display. Has it got a stableising device.?
Submitted: 1 year ago.
Category: UK Car
Expert:  Matt replied 1 year ago.

Hello

the MPG is calculated from injector opening times

so for it to be erratic I'd suspect that 1 or more of the injectors has a poor connection or there's a fault with the wiring loom thats shorting the injectors out

so I'd disconnect the injectors electrically and use some contact cleaner on both sides and carefully inspect the the wiring for all

Expert:  Matt replied 1 year ago.
Hello
do you still need help?