Technical Won’t rev above 2750rpm Fiat Ducato X290

[Al Bondigaz]

2018 150Bhp Fiat Ducato X290. based Hymer Motorhome, 10,000 miles on the clock.

Not been driven much over the winter months but has done maybe 200 miles in the last couple of weeks - all 30 mile plus journeys.

It was all working fine last week when I parked it up but today drove out of the yard and then realised it won’t rev over 2750 rpm.

Visually checked under the bonnet. No leaking fuel lines. Took air filter out, no evidence of rodent invasion.

Filled with diesel last week and driven about 50 miles since.

Learned friends …. what do we think are the most likely issues to cause this?

I’ve ordered an OBD2 code reader from Amazon - can’t believe I don’t already have one of these!

Also - should my air intake have some sort of grill over it - this is just asking for a rodent to crawl in.

 

[varesecrazy]

Hi.

No obvious clean marks around those spare mount holes..

Did it run the same after a restart?


No warning light on the dash?

 

[Al Bondigaz]

Still runs the same after restart - should have a code reader delivered later today. I'll see what that shows.

 

[Al Bondigaz]

Re: Won’t rev above 2750rpm Fiat Ducato X290 - Fixed!

It was the switch on the clutch pedal at fault.

Basically, with the clutch down the engine will only rev to 2750rpm. That’s what it’s meant to do, I guess as a safety measure.

A couple of weeks ago I ran a couple of cables in that area - these were for my bass speaker. I hadn’t clipped them properly to the back of the lower dash panels and so they were intermittently interfering with the clutch switch!

This would explain why it wasn’t throwing up an engine light error.

All working fine now!