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Old 04-12-2013, 09:06 AM   #1
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Default My VVT swap attempt - little different because 1,6 1996 Euro car

Hi guys,

as I received my 2001 VVT engine yesterday I try to prepare myself for a swap into my

1996 1.6 NA - (not known in the US, only in Europe) somewhat different, because it is already wired for sequential injection for instance... (apart from that the wiring doesn't seem to be very different from the 90-93 US 1.6 cars.

I made myself a list of steps to go with the wiring for the swap - according to Savington's writeup.
I would be really happy if one of the experts could check and help me out here and there...
Benefit will be that we will get some more info into the "Connector witch hunt" thread...

1. Starter/Alternator wiring

I am going to use a 1994-1997 1.8 alternator and re-use all the old wiring.



2. Injector / Coolant wiring

I made a little sketch on the wiring on my 1,6 (already sequential fuel) and on the 2001 VVT

Here is the 1.6 wiring (for the Euro 96 car)



Here is the 2001 VVT wiring



As you can see - they swapped the Inj 1&2 and Inj 3&4 on the 1.6 - God knows why, as the 1.8 wiring is exactly the same as the 2001 VVT...

I think I will de-pin the 1,6 harness and correct the Injector pinout.

The connector X14 / X12 is the same connector on both cars a

AMP
8 Way Econoseal J Series Mark II





3. CLT

I think I will try to use the 2001 sensor for dash and ECU:

Is checked the resistances of the sensors:
NA
Thermo sensor ECU
20deg C 2.2-2.7kohm
80deg C 0.29-0.35kohm

Temp sensor dash
80 degC 190-260kohm

NBFL 2001
Thermo sensor ECU
20 degC 2.27-2.74kohm
80 degC 0.29-0.34kohm

Temp sensor dash
50 degC 186-204kohm

I think I will use the complete 2001 inj harness for both injectors and also for CLT sensors - should be working out...


4. COIL/IGNITER wiring

My plan is to make myself an adapter harness between the connector of the igniter and the 2001 coils.

I made a little sketch but I am not sure if this is correct and what needs to be done for the fuelpump...
@Savington - could you eventually help me out here?





5. CAM/CRANK wiring

I will also make myself an adapter harness for this





6. IAC wiring

I will also make a little adapter harness for this (I probably just de-pin the 1,6 connector and pin the VVT connector on, as they are of the same system)

1,6 l IAC connector is - AMP SSC Part.Nr. 184002-1

2001 VVT IAC connector is - AMP SSC Part.Nr. 184000-1



7. TPS wiring

I will also make a little adapter harness for this

1,6 l TPS connector is - Bosch 1237000039 / AMP JPT 3-position

2001 VVT TPS connector is - YAZAKI 7283-1133-10

Here is the sketch for this:

Attached Thumbnails
My VVT swap attempt - little different because 1,6 1996 Euro car-connector_x12_injector_harness_1996_1.6.jpg   My VVT swap attempt - little different because 1,6 1996 Euro car-connector_x14_injector_harness_2001.jpg   My VVT swap attempt - little different because 1,6 1996 Euro car-conn-00128-1.jpg.thumb_300x284_mat.jpg   My VVT swap attempt - little different because 1,6 1996 Euro car-coil_adapter_harness_1-6_2001.jpg   My VVT swap attempt - little different because 1,6 1996 Euro car-cas_wiring_1.6_vvt.jpg  


Last edited by Zaphod; 04-15-2013 at 11:32 AM.
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Old 04-12-2013, 09:50 AM   #2
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Pictures are failing. You can easiliy have MS trigger the fans based on the coolant temp already going to it so you dont need the thermo switch.
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Old 04-12-2013, 10:40 AM   #3
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Pictures should be working now - just checked on my phone...
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Old 04-12-2013, 10:54 AM   #4
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From the looks of it, you don't need to touch the injector wiring at all. You'll need to split the CAS into two (which you've already made a note of, it looks right).

The only other things will be small stuff like the rear water neck (keep the 96 one) and running new wires for the IAT and VVT.
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Old 04-12-2013, 10:55 AM   #5
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I don't think the 1.8 alternator will work as the 1.6 did. The NB alternator uses a signal from the ECU for voltage regulation.
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Old 04-12-2013, 10:56 AM   #6
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Quote:
Originally Posted by tpwalsh View Post
I don't think the 1.8 alternator will work as the 1.6 did. The NB alternator uses a signal from the ECU for voltage regulation.
Needs to be an NA8 alternator. Unless your Euro NA6 alt is setup for a ribbed belt and not a v belt, then that one should be fine.
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Old 04-12-2013, 10:58 AM   #7
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Quote:
Originally Posted by tpwalsh View Post
I don't think the 1.8 alternator will work as the 1.6 did. The NB alternator uses a signal from the ECU for voltage regulation.
Don't get confused - that is for Project Trisha MxMillan my Miata Nr. 3

a 1996 NA and I will get a 1994-1997 1.8 Alternator... (I change this in Post Nr. 1 - as I will all the changes and additions to keep all in one place)

https://www.miataturbo.net/build-thr...rillian-71861/
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Old 04-12-2013, 11:06 AM   #8
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Pics work fine for me. I can make some 1.6 IAC pics if you need. Do you already have the CMP and CKP connectors to plug into the sensors on the motor? How about the VVT actuator connector? I need some too, as well as a solution for the CAS connector.
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Old 04-12-2013, 11:15 AM   #9
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Quote:
Originally Posted by Leafy View Post
Needs to be an NA8 alternator. Unless your Euro NA6 alt is setup for a ribbed belt and not a v belt, then that one should be fine.
Ahh yep, forgot about the ribbed vs V belt.
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Old 04-12-2013, 12:27 PM   #10
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Quote:
Originally Posted by Oscar View Post
Pics work fine for me. I can make some 1.6 IAC pics if you need. Do you already have the CMP and CKP connectors to plug into the sensors on the motor? How about the VVT actuator connector? I need some too, as well as a solution for the CAS connector.
- pics of IAC connector would be fine (Please post in the "Connector witch hunt thread")
- all sensors are in my engine I got
- VVT connector is a Sumitomo SL series 6189-0642 (I got the complete engine harness with my car so I might use the one from the harness - but I would be happy if I could find a source for the Sumitomo and Yazaki connectors over here in Europe)
- CAS connector will be difficult because the connector used is a wire-to-device connector, so there is no mating male connector - I might de-pin it and use another 4pin sealed connector
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Old 04-12-2013, 01:32 PM   #11
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There's a dickload of pics in the thread now. I'll be labeling them shortly. I still need the VVT connectors/pigtails/harness for the crank sensors, cam sensor, VVT actuator. If you can get these somewhere, awesome.

Coincidentally, I did find the 94 1.8 coil connectors are a direct fit for the CAS connector.
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Old 04-12-2013, 02:16 PM   #12
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Yepp - some of the connectors are interchangeable.

As I said - no source in Germany, maybe we should order at Ballenger Motorsports together...
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Old 04-12-2013, 03:28 PM   #13
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That'd be good. I need the VVT actuator, crank and cam sensor connectors with pins or complete pigtails. For the CAS I could indeed de-pin and use any 4-pin sealed connector.
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Old 04-14-2013, 03:18 PM   #14
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Do I get this right from the factory wiring diagramms that the 1.6 NA has all in all 3 coolant sensors? 1 thermo sensor for the ECU (back of the head), 1 temp sensor for the dashboard (also back of the head) and 1 thermo switch for the fan on the front thermostat housing?

I also cross checked the factory manuals for the 1989 NA, the 00 NB and the 2001 NBFL for the sensor resistances and found this

NA
Thermo sensor ECU
20deg C 2.2-2.7kohm
80deg C 0.29-0.35kohm

Temp sensor dash
80 degC 190-260kohm

NB 2000
Thermo sensor ECU
20 degC 2.36-2.53kohm
60 degC 0.56-0.64kohm

Temp sensor dash
50 degC 152-242kohm

NBFL 2001
Thermo sensor ECU
20 degC 2.27-2.74kohm
80 degC 0.29-0.34kohm

Temp sensor dash
50 degC 186-204kohm

So I think one could even reuse the OEM 2001 coolant sensor...

Last edited by Zaphod; 04-15-2013 at 11:07 AM.
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Old 04-15-2013, 06:28 AM   #15
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Update:
added a drawing for the TPS adapter harness 1,6/2001 in post 1.
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Old 04-15-2013, 08:49 AM   #16
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Update:
added a drawing for the IAC connector adapter in post 1
(I probably just de-pin the 1,6 connector and pin the VVT connector on, as they are of the same AMP SSC connector system)
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Old 04-23-2013, 06:19 AM   #17
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@the 1,6 to VVT crew - how did you handle the Tach signal to the dash?
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Old 04-23-2013, 07:26 AM   #18
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Quote:
Originally Posted by Zaphod View Post
@the 1,6 to VVT crew - how did you handle the Tach signal to the dash?
Build a circuit in your MegaSquirt?
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Old 04-23-2013, 07:56 AM   #19
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Sorry I was unspecific - I will use the Tach out of the MS3(+x), but the wiring to the tach goes from the ignitor to the dash - did the swappers use an extra wire for this or did you jumper wires to get the signal from the MS to the dash?
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Old 04-23-2013, 08:22 AM   #20
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At least on my 1.8 94 there is a black/white wire I believe that goes from the coils, to the dash, and ECU.
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