Vacuum leak fuel cut

ckretvix · Post by **ckretvix** » Fri Dec 25, 2009 5:52 pm

Does this work via just reading TPS to determine when to cut fuel?

ckretvix · Post by **ckretvix** » Thu Jan 14, 2010 10:28 pm

bump, can someone explain this please?

Post by **Bugermass** » Fri Jan 15, 2010 12:20 am

The stock ECu has a routine that prevents the car from over revving if you have a vaccume leak.. Bascally if it sees to high of an idle speed with the TPS below a certain threshold it will momentarily cut fuel to lower the RPMs.. This is why when you have a vaccume leak the car will rev then bog then rev then bog, when your sitting at idle.. The check box just disables this feature.

ckretvix · Post by **ckretvix** » Fri Jan 15, 2010 1:08 am

Ok great; thanks.

Post by **calvin** » Tue Jan 19, 2010 7:16 pm

thanks burgermass!