Help

[CHEF_GOLF]

Hi all I am having a little problem with my chimp.
She is idling foe a few minutes then dies. I have just changed the MAF, I wonder if anyone can shed an light on the rover gauge logs? Thanks in advance

[phazed]

Don’t know the answer but most people would appreciate you calling the car a chim.

[CHEF_GOLF]

She’s been a monkey for the past 21 years I have owned her. Hence chimp 😁

[Sir Paolo]

At least you haven’t referred to it as a “Tivvy”.

But aren’t we getting a little off topic?

[blaze_away]

I have been helping OP by analysing the RoverGauge data.

Few days ago the OLD MAF appeared to fail whilst engine was in a stable mode, idling at 1050 rpm

Suddenly the MAF dropped from reading 35% to 5% with no other parameters changing. Diagnosed MAF as potentially an issue as engine bay warmed up. OP purchased known good used unit.

Also noticed that the 'Main Voltage' was erratic when the idle began to go haywire, quite curious ?

Re-ran the engine,with the NEW MAF.

Same scenario, when things go wrong, voltage drops and MAF and TPS both jump up.

This chart shows the 8 second period where this all start happening.



I think the Erratic Voltage needs closer scrutiny, what do others think ?

Looking at the chart in first post it drops from stable 13v to under 10v on old MAF and to under 7v on the new MAF

Edited by blaze_away on Saturday 3rd October 12:04