1st Gen R53 Cooper S Most liked posts in thread: Issue w/ my R53...lazy throttle.

Yea I would get those code's or code read. May have another one there, well hopefully, at least that would let you know what happened That's why I like my permanent mounted Scangauge and my FA tuning tool. Gives all the info I need :cornut:

 

Just a SWAG, maybe it was so hot it went into some sort of limp or self preservation mode. Those codes may tell the tale.

 

:cornut: Roger That. Scan Gauge II

Jason

 

Hi, I was the aforementioned co-driver of Ken's mini at this event.

My first impression was that it was having a fuel starvation issue, but that was before I realized it was an electronic throttle system. I have to say that my blind diagnosis would probably lean towards excessive heatsoak of the intercooler. Our runs were VERY close together, and I know those intercoolers are bad enough on just stock boost, so I can only imagine how high the IAT's were reaching by the end.

My reasoning for that diagnosis is this: Ken iced the intercooler for a little bit prior to our second session, and my first run on the second session seemed to have the least amount of throttle cut off. My last run, however, was absolutely horrific. I think my outburst of profanity at the end of that last run may have been a hint of that lol.

Ken, thanks again for letting me co-drive. The car felt great (obviously aside from the throttle issue), and I'm jealous of your comfort and a/c.

- Steven

 

Another good reason to get a Scangauge mounted

 

Do you left foot brake?

Cause that will kill the throttle.

 

That is interesting. I'm a right foot braker & had no clue our MINIs had a left foot braking nanny in them. Love those nanny's.... :mad2:

 

Sounds like a collapsing vacuum hose or intake boot. Something is choking the throttle, and I'd guess air rather than fuel. Heat can affect rubber hoses, too. Check the hoses around the bypass valve, too.

 

All thanks to the knee-jerk reaction after the Audi 5000 claims of un-intended acceleration. Most (if not all now) European cars have a system that cuts off throttle if the brakes are applied hard after a short period of time.

 

It was also like what...in the mid to upper 90s then too...

Heat kills our little cars, mine is so unhappy right now.

 

OK, just how does the car know which foot I have on the break????????

Jim

 

One of two ways...

1. There is a small camera in the dash pointing down that is beams a picture back to an engineer in Germany that eats his sandwich with a knife and fork. When he sees the left foot hit the brake pedal a signal is sent out faster than the speed of light squared that tells the car shut down the accelerator.

2. When the ECU sees both pressure on the gas and brake at the same time it cuts the fuel.

But does a MINI really do this?

Where would we even ask?

 

When you left foot brake Jim your right foot remains on the gas. No gas & no brake at the same time.

I think the Audrey 5000 gave us the shifter interlock nanny.

The Ford Exploder & Firestone gave us the the air pressure nanny.

Now the Camry & it's allegedly defective floor mats will make sure no one left foot brakes. My car was built before that happened so maybe it is a throwback to the 5000.

They can add all the nanny's they please, but you can't fix stupid.

[ame=http://www.youtube.com/watch?v=0gxKStPXyn8]‪Ron White - Stupid is forever‬‏ - YouTube[/ame]

 

Gotta love those German's.....

[ame=http://www.youtube.com/watch?v=gh5xu35bAxA]‪FUNNY! SOS! MAYDAY! SINKING!‬‏ - YouTube[/ame]

 

Upper 90's?.........naa.....if that was the case we couldn't drive here for 6 months out of the year :lol: Yes, heatsoak at the I/C will hurt but from what he is describing it would have to be super high?

 

Tater Salad.... My Hero...