Rich / lean conditions

[Ashrafi]

Hi members, need your input on these:

should the 4efte idle rich or lean?
should it decelerate rich or lean?

i am having idling issues and am out or idea on how to solve the problem:

so far i have changed dizzy,plugs, spark plugs, fuel pump , calibrate the tps, check for any air leaks, timing etc. only thing i have not changed is the CTS.

the car idles well for 1 minutes or 2 and when you drive it and release the gas pedal it goes to say 200rpm and catch back a little to 1100rpm and sometime it dies.

my concern also is should it idle rich or lean and should it decelerate on rich or lean?

any input n this are welcome friends.

 

[Jay]

What are you measuring your air/fuel ratio with?

If it's a wideband it'll be accurate.

If it's a narrowband you'd get a more accurate reading by licking your finger and sticking it out the window.

 

[Ashrafi]

its a narrow band gauge on a stock ecu.

 

[dac69er]

You won't be getting any worthwhile readings from that.

To me it sounds like the one thing you Havnt changed is the one thing that is most likely the problem.

 

[Ashrafi]

will try to find one, as its difficult to have a new one in MRU.