ECU reset...
07 July 2003, 09:19 AM
#1
Scooby Regular
Thread Starter
iTrader: (15)
Join Date: Jul 2001
Location: Portsmouth
Posts: 8,606
Likes: 0
Received 0 Likes
on
0 Posts
Heard these threads that claim an extra 25miles from a tank of Optimax if the ECU is reset to time for the fuel.
Of course thats as long as the car was run on lesser fuel grade before, Im assuming.
Does a MY99 UK Turbo need to have its ECU reset because theres a 50/50 split as to whether the ECU will adjust UP for fuel or just DOWN.
Can some of you techno-types help out here please cos 25 miles per tank is a big increase.
Andy
Of course thats as long as the car was run on lesser fuel grade before, Im assuming.
Does a MY99 UK Turbo need to have its ECU reset because theres a 50/50 split as to whether the ECU will adjust UP for fuel or just DOWN.
Can some of you techno-types help out here please cos 25 miles per tank is a big increase.
Andy
08 July 2003, 04:09 AM
#2
Scooby Regular
Join Date: Jul 2001
Posts: 799
Likes: 0
Received 0 Likes
on
0 Posts
The ECU will advance the timing when you run higher octane therefore requiring less throttle position to achieve the same speed, so less throttle position means less air and fuel = better economy
08 July 2003, 05:14 PM
#3
Scooby Regular
Join Date: Oct 2001
Location: Bish,Bash,Bosham!
Posts: 2,204
Likes: 0
Received 0 Likes
on
0 Posts
I think the above only applies to >98 ECUs. The <99 ECUs take ages to compensate for better fuel hence a reset provides instant results.
In other words Andy, I don't think it is necessary with your ECU.
Jay
In other words Andy, I don't think it is necessary with your ECU.
Jay
That's not good 
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM