I just installed an N1 muffler on my Del Sol B16 which is all stock except for CAI and a test pipe.......

and now my idle pulses from 800 rpm to 1400 rpm consistently !

whats up with that ?

 

anyone ????

I unpluged my battery for about5 minutes......still same bouncy idle....

 

anybody out there?

 

Are you getting any Check Engine Lights??

 

no SES....... but, Idle is jumpy from 800-1400......only when the engine is up to temp!

 

sounds like a vaccuum leak in the manifold. You sure you didn't unplug any hoses?

And no, installing a muffler will not cause irratic idle.

 

maybe I do have a leak somewhere........any "quick" way to check ?

Or just go one by one ?

 

heres what i did to check for vac leaks:

1. remove your intake.

2. have a friend start the car.

3. cup the palm of your left hand onto the intake mani.

4. if car erratically idles down and not idling like you said and you can hear a slight whistling or sucking/pshhing noise, there might be a leak somewhere. otherwise the engine would just die then theres no leak.

I might be wrong on so many levels, but this method worked for me.
hope this helps you. LMK if you need more advice.

~Rick

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6_rick &raquo;</TD></TR><TR><TD CLASS="quote">heres what i did to check for vac leaks:

1. remove your intake.

2. have a friend start the car.

3. cup the palm of your left hand onto the intake mani.

4. if car erratically idles down and not idling like you said and you can hear a slight whistling or sucking/pshhing noise, there might be a leak somewhere. otherwise the engine would just die then theres no leak.

I might be wrong on so many levels, but this method worked for me.
hope this helps you. LMK if you need more advice.

~Rick


</TD></TR></TABLE>

Good advise, I'll have to remeber that

 

there are 2 holes in the IM, if you cover the top one with ur finger it will do the same