SR problem..Choking under light throttle. Mafs??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Eternal_240Sx · 09-01-2004, 04:36 PM

Well i have a problem with my redtop. Under light acceleration my engine will start choking when i hit 2500rpms and up in all gears, it would choke then stop for a couple of secs then choke agian and agian etc. If i go to medium or hard acceleration there will be not problem at all. I first thought my mafs could have been messed up so i used a sohc mafs. For anyone using sohc mafs on there car the pins go like this correct?

SR ----------- KA
B -----------> A
C -----------> B
D -----------> C

This is what i found on NICO, but it seems that it may not be the MAFS if the wiring is correct. What else could be the problem?? Please help.

My mods are:
Intake, downpipe, test pipe, and exhaust. Thats all...

Thanks

rico05 · 09-02-2004, 12:00 AM

If it happens EXACTLY at 2500 RPM then it is the MAF. Throws your ECU into "lipm home mode" and kills revvs above 2500 to keep the engine safe. Can't tell you if wiring is different cuz I have a CA myself, but I am using a KAE MAF as well.

F3600 · 09-02-2004, 08:00 AM

maybe your wiring is cutting some time so its run in safe mode for a moment then run okay .. tuka tchek your ecu for code should be the first step in troubleshootting.

09-01-2004, 04:36 PM	#1
Eternal_240Sx Zilvia Addict Join Date: Dec 2002 Location: norcal, bay area Age: 41 Posts: 674 Trader Rating: (1) Feedback Score: 1 reviews	SR problem..Choking under light throttle. Mafs??? Well i have a problem with my redtop. Under light acceleration my engine will start choking when i hit 2500rpms and up in all gears, it would choke then stop for a couple of secs then choke agian and agian etc. If i go to medium or hard acceleration there will be not problem at all. I first thought my mafs could have been messed up so i used a sohc mafs. For anyone using sohc mafs on there car the pins go like this correct? SR ----------- KA B -----------> A C -----------> B D -----------> C This is what i found on NICO, but it seems that it may not be the MAFS if the wiring is correct. What else could be the problem?? Please help. My mods are: Intake, downpipe, test pipe, and exhaust. Thats all... Thanks __________________ Life is good in the bay.

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09-02-2004, 12:00 AM	#2
rico05 Leaky Injector Join Date: Sep 2003 Location: College Station, Tx Posts: 83 Trader Rating: (0) Feedback Score: 0 reviews	If it happens EXACTLY at 2500 RPM then it is the MAF. Throws your ECU into "lipm home mode" and kills revvs above 2500 to keep the engine safe. Can't tell you if wiring is different cuz I have a CA myself, but I am using a KAE MAF as well.

09-02-2004, 08:00 AM	#3
F3600 Zilvia Junkie Join Date: Apr 2002 Posts: 364 Trader Rating: (0) Feedback Score: 0 reviews	maybe your wiring is cutting some time so its run in safe mode for a moment then run okay .. tuka tchek your ecu for code should be the first step in troubleshootting.