Loss of power at 75-80 mph

[Stryker]

Been happening the last few days in my ph1 when I reach 75-80 mph the car seems to lose power as if I'm driving into a massive headwind. Any ideas much appreciated

 

[Chip-mk1]

Does the same thing happen at the same rpm in lower gears? Ie at 65mph in 4th or whatever?

 

[Stryker]

No havnt noticed it, what would it be if it was?

 

[Chip-mk1]

Its just what I would expect to happen, largely irrelevant of what the specific issue is.

If it doesnt though it might be fuel pump for example, as it will be working harder in fifth than in 2nd to get to those rpm in the first place, so its useful background info to know.

Is the ECU light on to say it knows there is a fault?

Ignition is where Im going to throw my guess, so either plug leads loose on the coilpack, plugs themselves knackered or leaking from the rocker cover into the plug holes (or water getting down the same way)

 

[Stryker]

Cheers chip, will check the plugs and prob change the leads and coilpack and see if it cures it

 

[whom]

Mine does this when I have the speed limiter set to 80....

 

[H182]

I had this once or twice a year or two ago, dropped a cog and booted it above that speed, then changed back up and all was fine. Seemed to have resolved itself since (touch wood)

 

[Chip-mk1]

I had this once or twice a year or two ago, dropped a cog and booted it above that speed, then changed back up and all was fine. Seemed to have resolved itself since (touch wood)

That's Known as an Italian tuneup.

 

[Thrill]

Maybe you need to give it a good thrashing Stryker

 

[Edges]

I had this on mine.. Got worse over time and it tuned out it was simply over fuelling.. Previous owner had played with lambda wiring so wasn't running on and the ecu was just way over fuelling. New lambda and some wiring repairs by mick at diamond and it runs perfect

 

[.Stevo.C.]

Mine does this when I have the speed limiter set to 80....

Not sure if your being serious or not...