Bad idle and maf issues...ideas anyone? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Domadred · 03-28-2005, 08:39 PM

Background: s13 blacktop in a 91 240sx. Freshly installed, never driven. Apexi AFC, rb25 maf

Two problems.
Without the maf: The engine tries to start, drops to 200 rpm, and then catchs when I press the gas. It will idle at 850 for about a minute, and then dies unless I keep my foot on the gas. What could be causing this?

-I have taken the intake manifold off and am looking at the aav. How
can you check if it is ok?

With the maf: Car will not idle. I know this is a maf problem. I have searched and havent found any specifc info on afc settings, besides that the rb25 maf is similar to the z32 maf. I have 3 volts coming in to the maf.

-What is the rb25 maf resistance supposed to be?
-Apexi AFC settings for the rb25 maf would be super.

03-28-2005, 08:39 PM	#1
Domadred Join Date: Mar 2005 Location: Las Vegas Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	Bad idle and maf issues...ideas anyone? Background: s13 blacktop in a 91 240sx. Freshly installed, never driven. Apexi AFC, rb25 maf Two problems. Without the maf: The engine tries to start, drops to 200 rpm, and then catchs when I press the gas. It will idle at 850 for about a minute, and then dies unless I keep my foot on the gas. What could be causing this? -I have taken the intake manifold off and am looking at the aav. How can you check if it is ok? With the maf: Car will not idle. I know this is a maf problem. I have searched and havent found any specifc info on afc settings, besides that the rb25 maf is similar to the z32 maf. I have 3 volts coming in to the maf. -What is the rb25 maf resistance supposed to be? -Apexi AFC settings for the rb25 maf would be super. Last edited by Domadred; 03-28-2005 at 09:24 PM..