HELP!! Unstable Idling

[felixchanthecat]

installed a apexi mushroom cone filter yesterday and the idling of my car is all overthe place...jumps to 1600 then back to 1300rpm then back to 1600 again....

anyone have any idea on whats wrong....or anyone has any similar experience after changing to a cone air filter?

btw i drive an evo 5

thanks all

F

[user1420]

it's fluctuate idling prob...
Seems like u need S-AFC II controller...
It's useful and could overcome the problem...

[Jabberwocky]

could be an air leak after the MAF, or the MAF not liking the Air filter for some reason. if that is the case you might need an EIDS

[felixchanthecat]

i have an safc ii already. it seems the a/f sensor is messed as its giving more revs at idling...i think its the new mushroom filter i have, mite try resetting the car by pulling out the battery tonite...thanks for the advise dude!

F

[felixchanthecat]

eids only way out of the problem? cuase it was working for the whole of yesterday when it was changed, just started to go all crazy today...anywyas...thnaks dude

F

Originally Posted by Andy_Evo5

could be an air leak after the MAF, or the MAF not liking the Air filter for some reason. if that is the case you might need an EIDS

[Jabberwocky]

I had an idle problem ages ago that was the MAF but that just kept shutting down the engine at when the throttle was closed, might try that.

[felixchanthecat]

Originally Posted by Andy_Evo5

I had an idle problem ages ago that was the MAF but that just kept shutting down the engine at when the throttle was closed, might try that.

that little box above the air induction pipe the maf? i reckon its that...amazing this is that it doesnt kill my engine it just gives it blips of the throttle...thanks for the advise andy!!

F

[user1420]

[quote="felixchanthecat"]i have an safc ii already. it seems the a/f sensor is messed as its giving more revs at idling...i think its the new mushroom filter i have, mite try resetting the car by pulling out the battery tonite...thanks for the advise dude!

u means u try to resetting ur ecu or ur safc ii?
if u want to resetting ur safc ii, u only need to restore default setting...
...and it's will restore all data in safc ii to factory specs...

[felixchanthecat]

[quote="xizan"]

Originally Posted by felixchanthecat

i have an safc ii already. it seems the a/f sensor is messed as its giving more revs at idling...i think its the new mushroom filter i have, mite try resetting the car by pulling out the battery tonite...thanks for the advise dude!

u means u try to resetting ur ecu or ur safc ii?
if u want to resetting ur safc ii, u only need to restore default setting...
...and it's will restore all data in safc ii to factory specs...

i have two safc settings, one data file has no correction and the other one with, the car idles funny on both hence its not an safc problem.

i want to reset the factory ecu as i was told by my mech that may help the car correct to the new air filter...well its free so perhaps worth a try!!

F

[Jabberwocky]

that is good advice go for the free stuff first. :muhaha:

yes the MAF is the pipe with a plug on it between the air filter and the turbo housing. is it the standard one?