What The Hell Is MKI / MKII

OR...you could call them Zenki and Kouki

Zenki = MK.I
Kouki = MK.II
dont start that crap again! :hit: :lick:

So, what's 1.5 then? You gonna revert to calling it Mk1.5?

OR...you could call them Zenki and Kouki

Zenki = MK.I
Kouki = MK.II

there's also an MK.1.5 tho...

that's during the cross over period of some 1986 models that had some mk.ii parts

I know that timing advance was initiated by vacuum on the MK.I and electronically on the MK.II

MK.I having mechanical lifters and MK.II having hydraulic ones or something.

um....most of the changes were cosmetic...spoiler, factory skirts and chin spoiler, updated tails, grill, side markers, etc...Yah skirts on some models (unfortunately not mine), and the manual trannies went from an exterior linkage to an interior linkage. the coils from the turbo cars were also put into the MKII CA20's and the interiors were changed too. Canadian CA20's also saw IRS in the rear rather than Live axle setup. The major difference however, and this I just found out yesterday, was that the MKI and MKII CA20 ECU's ARE NOT swappable. There are three connectors on the MKII, and only Two on the MKI, and from what I can see the MKII CA20's have Eprom encoding...

my 87 ecu has only 2 plugs. so what is mine. mkI or mkII?
Really I haven't seen that before...what is the production date?? On mine (02/87) there are two right next to each other, then there is a third about an inch closer to the firewall. The two closest to the door are right becide each other and look like one, but they are actually two plugs...are you sure yours has only two??

I can't believe they had it on the passenger side. that's most moronic Idea ever. Mines on the driver side where the turbo is but doesn't have IAC redesign or the rubber spoiler or a rev limter. Lucky me!! :)

YAAAA!! My car even rarer cuz I have a Mk 1.5 YAAAA!!!
I dunno about that ;-) ...the 280ZX L28ET had the turbo oil feed coming from the passenger side (US market, so the right side...opposite where the turbo is) because they just use a T-fitting off the oil pressure sender hole.

Yep thats the same way the 84-85 CA18ET is done with the oil line coming from a small block fitting where the oil pressure sending unit goes.

best and quickest way to starve the turbo.. man nissan really liked the green stuff back in the 80's

i read it, but dont know what it is.

its the body styles
 
1984-1986.5 = MKI
1986.5-1988 = MKII

OR...you could call them Zenki and Kouki

Zenki = MK.I
Kouki = MK.II

there\'s also an MK.1.5 tho...

that\'s during the cross over period of some 1986 models that had some mk.ii parts

OR...you could call them Zenki and Kouki
 
Zenki = MK.I
Kouki = MK.II

So, what\'s 1.5 then? You gonna revert to calling it Mk1.5?

OR...you could call them Zenki and Kouki

Zenki = MK.I
Kouki = MK.II

there\'s also an MK.1.5 tho...

that\'s during the cross over period of some 1986 models that had some mk.ii parts

you people are too anal.  

I\'m just giving him options.

Chill man, just giving ya a hard time :p ;)

so what are the differences? grills, front corner lights, and tail lights?  anything else?

i remember when i was looking for a heater core, they said that there were two possible ones because nissan changed some stuff during mid \'87.

anybody know anything about that?

I know that timing advance was initiated by vacuum on the MK.I and electronically on the MK.II

MK.I having mechanical lifters and MK.II having hydraulic ones or something.  

um....most of the changes were cosmetic...spoiler, factory skirts and chin spoiler, updated tails, grill, side markers, etc...

I know that timing advance was initiated by vacuum on the MK.I and electronically on the MK.II
 
MK.I having mechanical lifters and MK.II having hydraulic ones or something.
 
um....most of the changes were cosmetic...spoiler, factory skirts and chin spoiler, updated tails, grill, side markers, etc...

my 87 ecu has only 2 plugs.  so what is mine. mkI or mkII?

87\'s are MK2

my 87 ecu has only 2 plugs. so what is mine. mkI or mkII?

my bad, i had a brain fart.  you are right.  i have 3.  i dont know what i was thinking.

Ok, that had me worried for a bit there...:|

does that count on the notchback too

i think also the 1.5 and mkII that had the ca18et had the oil feed for the turbo moved from the passenger side to the driver side..i think

I can\'t believe they had it on the passenger side. that\'s most moronic Idea ever. Mines on the driver side where the turbo is but doesn\'t have IAC redesign or the rubber spoiler or a rev limter. Lucky me!! :)

YAAAA!! My car even rarer cuz I have a Mk 1.5 YAAAA!!!

ya i think mines a 1.5 as well but not 100% sure

I can\'t believe they had it on the passenger side. that\'s most moronic Idea ever. Mines on the driver side where the turbo is but doesn\'t have IAC redesign or the rubber spoiler or a rev limter. Lucky me!! :)

YAAAA!! My car even rarer cuz I have a Mk 1.5 YAAAA!!!

Yep thats the same way the 84-85 CA18ET is done with the oil line coming from a small block fitting where the oil pressure sending unit goes.

Yep thats the same way the 84-85 CA18ET is done with the oil line coming from a small block fitting where the oil pressure sending unit goes.

haha   so true

how do u tell if its a 1.5 or not cuz i have a 86 turbo

Wow this thread is really old haha. I commend you for searching though.

84-85 is Mk1, 86 is Mk1.5, 87-88 is Mk2.

mk1.5's have bits of mk1 interior/mk2 interior and wiring differences between the two. its a mix match of interior and chassis items that make it a mk1.5 all of the s12's ive owned have been mk1.5's except my 87 SE car

so mines prob a mk 1.5 at least to assume that right?

Necromancer, You can assume that. But it won't help. You'll need to know both systems, as it will be mixed and matched
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