Official DIY ECU EPROM programming discussion

Post by **biosehnsucht** » Wed Jun 08, 2005 8:56 am

the VG tuning site I linked above also has a good explenation of how the ECU works

Post by **Vetal** » Thu Jun 09, 2005 8:26 am

If that was meant for me, it still doesn't explain the fact I gave

Post by **biosehnsucht** » Thu Jun 09, 2005 7:27 pm

It was meant for you and I'm too lazy to try and figure out whether what you saw before was wrong or if you goofed up the calcs somehow or if its a damn gremlin. :P

Post by **Vetal** » Sat Jun 11, 2005 6:05 am

I didn't goof them up That's for sureMight be that my Techedge distorts the signal... i.e. it sees lower voltage on AFM than there actually is

Post by **nab911** » Fri Jul 15, 2005 7:28 am

Well its time to rehash this thread . I finaly got my eprom programmer to write to a chip so i dropped my ecu off today to get chipped. I think i still have the old ca18 bin files but i forgot exactly what parameters i needed to change for what i have setup. I need to alter the file for 460cc injectors (rx-7's) and the sohc ka maf and a huge t3. Anyone got any suggestions?

Post by **Pumaking** » Fri Jul 15, 2005 7:31 am

yea get a better MAF cause your gonna max it out I believe around 220hp or was it 190 either way your ka maf is gonna hinder your motors potential.

Post by **nab911** » Fri Jul 15, 2005 7:33 am

Im just trying to get rid of the stumble at 4lbs because im maxing the ca maf out (200hp). I thought the sohc maf could take ~275?

Post by **Pumaking** » Fri Jul 15, 2005 7:44 am

from what I read the CA and SOHC KA maf are exactly the same. only difference is like an extra wire on the plug.

Post by **nab911** » Fri Jul 15, 2005 7:52 am

Can anyone else back this up before i go spend money on a z32 maf??

Post by **c-rad** » Fri Jul 15, 2005 8:09 am

SOHC KA MAF is only good to like 230-240hp MAX. It has a slightly larger diameter than the CA MAF, but the voltage curves are nearly identical. That's why you can use a KAE maf as a substitute for a CA/SR maf without any ecu changes.

Post by **nab911** » Fri Jul 15, 2005 12:56 pm

Anyone got a z32 or a cheaper alternative

Post by **Pumaking** » Fri Jul 15, 2005 3:17 pm

well you can go with either a Q45 MAF, N60 MAF which are out of early MAximas. The maxima maf usually got for $30-$50.

Post by **WeldingHank** » Fri Jul 15, 2005 3:31 pm

Maxima MAF, can do 350HP.

Post by **Dattebayo** » Fri Jul 15, 2005 6:43 pm

I see the N60's out here all the time. They are on J30's, I30's, maximas, 91-95 (96?) Z32's, etc.

They are easy to find for sure. I can get you one here for $70 if you cant find it easily.

Post by **c-rad** » Fri Jul 15, 2005 7:33 pm

J30 is an N62 (orange tag)... same as the Z32. 89-94 Maxima uses the N60 MAF (purple tag and looks physically identical to the N62 Z32 one). The 95-99 Maxima/I30 is different and I don't think can be used.

Post by **Dattebayo** » Fri Jul 15, 2005 7:36 pm

no, early J30 has N60 I have seen them. Not all Z32's have the N62, only the later years. I have seen this as well.

I believe that the N62 started appearing in Nissans somewhere about 1995 or 1996. It was not available before that.

Post by **c-rad** » Fri Jul 15, 2005 8:00 pm

2BN_S13 wrote:no, early J30 has N60 I have seen them. Not all Z32's have the N62, only the later years. I have seen this as well.

I believe that the N62 started appearing in Nissans somewhere about 1995 or 1996. It was not available before that.

Uhh... I pulled a MAF off a '93 J30 (first model year) and it was a 22680-30P00 N62 MAF. The 90-96 300Z and 93-97 J30 both use the exact same MAF seeing as it is the exact same engine.

Post by **c-rad** » Fri Jul 15, 2005 8:15 pm

Actually... I think they might have switched on the J30 in '96 with the advent of OBDII. I don't think its an N60 though as that is definitely an 89-94 Maxima MAF. I know the one that comes on the 95-99 maxima uses an oval plug rather than square.

Post by **Pencil Shavings** » Sat Jul 16, 2005 3:30 am

hey will this eprom programming also work for a turbo'd kade?

Post by **c-rad** » Sat Jul 16, 2005 4:40 am

Pencil Shavings wrote:hey will this eprom programming also work for a turbo'd kade?

KADE needs a daughterboard soldered into place as it is a 16-bit ECU. Sorry.

Post by **Pencil Shavings** » Sat Jul 16, 2005 5:13 am

So there is a way to reprogram it though?

If so you do you have any links handy specific to it?

thanks!

Post by **Pumaking** » Sat Jul 16, 2005 6:28 am

just go ahead and search

http://www.bikirom.com

Post by **nab911** » Mon Jul 18, 2005 9:24 am

Anyone have a maf they want to sell me Ill take any that can handle 300+

Post by **datsunboy** » Wed Jul 20, 2005 12:14 am

so can anyone else confirm that the N60 MAF can read 350HP???I didn't think it was quite that much.My MAF is from a R32 RB20DET skyline. and is a N60

Post by **c-rad** » Wed Jul 20, 2005 2:30 am

datsunboy wrote:so can anyone else confirm that the N60 MAF can read 350HP???I didn't think it was quite that much.My MAF is from a R32 RB20DET skyline. and is a N60

I always thought it was the same as the RB20 MAF at 300-310hp.

Post by **fanta** » Wed Jul 20, 2005 9:26 am

I go with their guidelines:http://www2.osk.3web.ne.jp/~t1....html

Post by **nab911** » Wed Jul 20, 2005 7:37 pm

OK so i need a definate answer on these mafs. Junkyards around me have them everyone but i need to know if i should get the z32 or the 89 max because there is a huge price difference

Post by **Dattebayo** » Wed Jul 20, 2005 7:46 pm

If you go to a pick n pull not so much

Post by **c-rad** » Wed Jul 20, 2005 8:20 pm

nab911 wrote:OK so i need a definate answer on these mafs. Junkyards around me have them everyone but i need to know if i should get the z32 or the 89 max because there is a huge price difference

That sucks... the junkyard here charges $15 no matter what the MAF comes off of. I say just get the Z32 and be done with it. The VQ maps are readily available for it.

Post by **datsunboy** » Wed Jul 20, 2005 9:01 pm

crap.....we dont have pick n pulls in NZ.most dismantlers know that the Z32 MAF is the biggest and everyone wants them so charge around $300 for a Z32 MAF....and only $70 for a skyline N60 MAF

Official DIY ECU EPROM programming discussion

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