Idle issue?

[HTX]

so I've noticed my car dropping idle a little randomly when stopped. this doesn't happen all the time and I noticed it started after my last fill up. it will happen when I pull up to a red light but not always. car is a MT with 9500 miles on it.

[ame]

Mods on the car:
MBRP catback
Full Race intake
Mishimoto intercooler and charge pipes
Tune+ WGA
Tune+ 93 tune

I was planning on putting the car back to stock tune to see if it happens again but I figured I would ask on here as well.

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[Tune+]

I would check the connection between the PCV and the intake manifold. Under higher boost they can pop off.

Another possibility is if you requested for me to put a higher idle in your car it could be on the edge of idle strategies in the ECU and that dip is it changing between one strategy to another.

Is this with clutch in?

 

[HTX]

I would check the connection between the PCV and the intake manifold. Under higher boost they can pop off.

Another possibility is if you requested for me to put a higher idle in your car it could be on the edge of idle strategies in the ECU and that dip is it changing between one strategy to another.

Is this with clutch in?

thanks Adam- ill check the connection. I haven't requested a higher idle.

I want to say it was with the clutch in but I honestly cant remember 100% to be sure. ill try it again today with the clutch in and without it in.

 

[Tune+]

Sounds good, report back!

 

[HTX]

I checked the connections and couldn't find anything not connected.

I still need to test out if having the clutch in or not is causing it.

 

[BlackBoostedStang]

I found something similar a few times when I had the clutch in when stopped at a light. Idle RPM's dropped for a coupe seconds then came right back up

 

[HTX]

so I just got back from lunch and I noticed that having the clutch pressed in or not isn't making a difference.

 

[evan546]

check your plugs

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