FORD FIESTA ENGINE MANAGER

Messages 1 to 5 of 5.

FORD FIESTA ENGINE MANAGER
6 June 2009, 6:00 PM

Un1xm4n
Joined 6 Jun 2009
3 posts

The battery failed on our 1997 FIESTA (1.25 ZETEC-S), we replaced the battery and as expected the ECU went into learning mode but it does not seem to have learnt very well.

The rev limiter cuts in at 4800 RPM under load but will rev freely when stationary up to 7000 RPM also it also requires a lot more revs than previously to pull away.

Any ideas how to perform a full system reset - we have tried disconnecting the battery for 30 minutes but in my opinion this is not a satisfactory method, electronic systems need to be reset rather than just rebooted....

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FORD FIESTA ENGINE MANAGER
7 June 2009, 7:14 AM

bedford keys
Joined 23 Jan 2006
148 posts

you need to drive at a constant 50 mph untill clears about 15 miles

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FORD FIESTA ENGINE MANAGER
7 June 2009, 10:48 AM

Un1xm4n
Joined 6 Jun 2009
3 posts

ok we will see what happens - thanks

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FORD FIESTA ENGINE MANAGER
7 June 2009, 3:21 PM

bas saph
Joined 20 Dec 2007
2035 posts

you need to drive at a constant 50 mph untill clears about 15 miles

lol Id have to go out at some ungoddly time of night to manage that.

___________________

Always learning

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FORD FIESTA ENGINE MANAGER
7 June 2009, 4:09 PM

Un1xm4n
Joined 6 Jun 2009
3 posts

I delved into teh Haynes manual a bit deeper and apparently you are supposed to let the car idle up to operating temperature then rev at 1200 RPM for two minutes and then drive it for 5 miles - no doubt with an eye of newt in the fuel tank and a dead frog tied to the drivers mirror - on a Tuesday.. lol

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