Dual vs single maf?

Basic tech questions such as future setups, different turbo kits, car diagnosis, etc
Post Reply
ERnex
Knows Some Stuff About 240's!
Posts: 242
Joined: Wed Oct 25, 2006 10:04 am
Location: Coldwater, Udaho
Contact:

Dual vs single maf?

Post by ERnex »

Jst need a quick answer ...I have a 240 that originally came with a ka24 single cam but put a dual instead still has the original maf sensor..will the car have issues like run rich..etc
1990 240sx hatch N/A.
User avatar
street_240sx
Belongs To The TOP CONTRIBUTING MEMBERS!
Posts: 1923
Joined: Sun Feb 10, 2008 7:31 pm
Location: 520 AZ

Re: Dual vs single maf?

Post by street_240sx »

Ka24e mafs is same as sr20 which is different from the ka24de one
03 evo8 gsr: stroker 2.3 ;)

04 evo8 gsr: totalled

96 integra gsr: sold

89 s13 coupe: stock dohc, gt3076, megasquirt

started 3/15/08, running 1/18/09, finally turbo 2/9/14 lmfao
ERnex
Knows Some Stuff About 240's!
Posts: 242
Joined: Wed Oct 25, 2006 10:04 am
Location: Coldwater, Udaho
Contact:

Re: Dual vs single maf?

Post by ERnex »

Oh thanks for the information...but I have one more question ..how can I distinguish between which maf it is? Because when I got the vehicle it came with a ka24de but before that it had an sr motor and it originally came stick with a single..don't know which one I have ..but also would having the wrong maf cause the car to run weird ? Like run rich
1990 240sx hatch N/A.
User avatar
street_240sx
Belongs To The TOP CONTRIBUTING MEMBERS!
Posts: 1923
Joined: Sun Feb 10, 2008 7:31 pm
Location: 520 AZ

Re: Dual vs single maf?

Post by street_240sx »

I think the connectors differ. And part numbers
03 evo8 gsr: stroker 2.3 ;)

04 evo8 gsr: totalled

96 integra gsr: sold

89 s13 coupe: stock dohc, gt3076, megasquirt

started 3/15/08, running 1/18/09, finally turbo 2/9/14 lmfao
User avatar
airman
KA-T.org OWNER
Posts: 2144
Joined: Tue Jun 16, 2009 12:51 pm
Location: Anderson, SC

Re: Dual vs single maf?

Post by airman »

Wrong MAF will definitely cause the car to run strangely if the ECU is expecting a different MAF. The air flow/voltage output characteristics (I believe you can call this a VQ map?) are different from MAF to MAF.
R.I.P. 1990 Red Hatch - DOHC 5 speed // CP 9:1 - Eagle Rods - Clevite - ARP // Holset HX35 - 20psi daily - MSPNP2
8-bit wrote:You could spend your life building a ladder to the moon, or work for 5 years to pay for a trip.
ERnex
Knows Some Stuff About 240's!
Posts: 242
Joined: Wed Oct 25, 2006 10:04 am
Location: Coldwater, Udaho
Contact:

Re: Dual vs single maf?

Post by ERnex »

Oh thanks. I've had my car forever it ran decent but ran rich and would backfire at times..blow the head gasket and jst ended up replacing full engine but been having issues since then..it was sitting in the back yard for so many years till it got the motor..got the same kind of motor a ka24de..not once did I every considered or thought it would be the maf because asuming it had the same motor as before..which was also a dual..bought a maf sensor for dual and will see if there is a change, I will keep you guys updated
1990 240sx hatch N/A.
ERnex
Knows Some Stuff About 240's!
Posts: 242
Joined: Wed Oct 25, 2006 10:04 am
Location: Coldwater, Udaho
Contact:

Re: Dual vs single maf?

Post by ERnex »

Jst got an update.. Bought another maf.. Now car is running great..got some other stuff replace too..but I am certain the maf was causing all the issues to act the way it was
1990 240sx hatch N/A.
Post Reply