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Discussion Starter · #1 ·
I swapped a 2002 engine, harness, ecu.

I still have all the other harnesses. Everything works fine.

Except I cannot find the old pair of wires/small wire clip that connects to the a/c accumulator. I see them on my old harness but not the new. I know the zx2 has them in the passenger fender.

So where would I connect the wires to the a/c accumulator after i install it in its new location in the fender?
 

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Discussion Starter · #2 ·
Anyone know where to splice these in at? Im gettin hot!!!!
 

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Your harness having no A/C wiring makes no sense. Are you sure there isn't a place near where the plug should be that has some cutoff wires? The Hanes manual should have wiring diagrams in it. Just read them and splice away. You also might want to try asking your question on teamzx2.
 

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Discussion Starter · #4 ·
I kept the harness from the spi in the passenger side fender. It does not have the accumulator plug on it because on the spi it is located on the main harness at the firewall.

After using the zx2 main harness for the swap the wires were deleted befcause the zx2 has them in the fender.


I am now needing to know where to run the wires back to, for the a/c accumulator.

Thanks again :)
 

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Just read the A/C schematic in the back of the Haynes manual. I don't have it with me currently but the info is right there.
 

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Discussion Starter · #6 ·
I cannot find mine...I just moved

Can someone please help?
 

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I scanned the page for you.
 

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Discussion Starter · #8 ·
Thanks! ^^^


So I went to pick a part. I ripped to SH** 2 escort harnesses. A 99 SE and a 2002 zx2. The a/c accumulator has a orange wire that runs from the passenger fender under the dash above the heater core to the drivers side of the car directly above the steering column. I could not track it farther without more tools or a saw. The other orange/green wire runs to the high pressure switch on the driver side in front of the air intake.

On the 99 SE 4 door the green/orange wire runs in the main harness through the firewall and becomes part of a main gray connector plug (paired with a white square plug directly behind the PCM)

The other wire on the 4 door runs to the same location into the high pressure switch in front of the air intake.



SO WHERE DOES THIS SOLID ORANGE WIRE CONNECT TO ON THE ZX2???
I could not locate it in the gray connector plug???
 

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It should be just like in the diagram. One wire runs to the high pressure switch and the other runs to the selector switch under the radio. When I installed the A/C deactivation switch in my 97 the wire going to the switch was orange with a green stripe. Running two wires isn't hard at all.

The bigger question is why didn't your zx2 harness have the plug? Did your junkyard excursion find the answer?
 

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Discussion Starter · #10 ·
zx2 low pressure switch is located in the harness that rund in the passenger fender well with some grounds and the cruise control stuff. The SPI is on the main harness.


I used an SPI dfender harness (stock one) and a zx2 engine harness. I knew why it wasnt there but not where they go.
 

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Discussion Starter · #11 ·
the zx2 has 3 wire high pressure sensor located behind driver side headlight. the SE has 4 wires and they are different colors.

Where do Iconnect the low pressure switch wire from SE to the zx2 high pressure sensor????????
 

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That is strange. The 3 wire high pressure sensor is from the older 98-99 zx2 and the 4 wire is from the 99.5+ ones. Your 02 harness should have the 4 wire switch. This is on converting from the older 3 wire setup to the to 4 wire so older zx2's can run an SR ecu. http://myzx2.com/Docs/SRPCM.pdf
I have the 98 Ford service manual so am going to look up the wiring.
 

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Ok, here is how it is on the 98 with the 3 wire high pressure switch according to the Ford manual. The green/red striped wire on the low pressure switch taps into to the same colored wire on the CCRM (pin 21) or pin 41 on the PCM. The orange wire goes to the orange/green stripe wire on the climate control switch. Here are the diagrams. Remember, these are for a 98 with the 3 wire high pressure switch.

 

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Discussion Starter · #14 ·
madmatt2024 said:
Ok, here is how it is on the 98 with the 3 wire high pressure switch according to the Ford manual. The green/red striped wire on the low pressure switch taps into to the same colored wire on the CCRM (pin 21) or pin 41 on the PCM. The orange wire goes to the orange/green stripe wire on the climate control switch. Here are the diagrams. Remember, these are for a 98 with the 3 wire high pressure switch.

Whats ur paypal?

i went to ford dealer, autozone, napa, kragen, and could not find that info on the 3 wire. It worked perfectly. I put ran the wires, hooked up the sensors, installed the new lines, and charged it with 2 can of 14 ounce r134a (28 ounces)

It blows ice cold!

ANyone know the amount of refrigerent to add to the system?

THANKYOU MADMATT I OWE YOU$$$$$$
 

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The dealer should have had that info seeing as it came from factory service CD-ROM. The manual says 24oz for the Zetech and 28oz for the SPI.
 

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madmatt2024 said:
The dealer should have had that info seeing as it came from factory service CD-ROM. The manual says 24oz for the Zetech and 28oz for the SPI.
My '98 ZX2 took about one and a half 14oz cans last Saturday from a completely empty, vacuumed-out system, but it also had a can of the lubricating oil and a small-ish can of stop-leak/dye in there ahead of it....

I charged it up until the high-side gauge read 300-310 when the engine was revved up to about 3k RPMs or so. It blows ice cubes now.... 8)

HTH! Thanks for the link about the S/R ECU swap, too, BTW....

C ya,
Dutch
 

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Discussion Starter · #17 ·
my 99/2002 mixed system took 2 whole 14 ounce cans. The system has been open for some time...is it necessary to have it evacuated and re-charged by a professional?

And if I do go to a professional should i replace the orifice tube and accumulator? Anything else?
 

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Technically you should evacuate an A/C system before recharging it and anytime a system has been open for awhile the accumulator should be replaced. If it works now the orifice tube probably doesn't need replacement. The thing I would worry about is the oil in the system but if didn't dump it out when you swapped the pump it should be fine.
 

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Discussion Starter · #19 ·
The green oil was blown out when I left the compressor plugged in with no lines and accidentally turned on the a/c. I think ill pay the 100 dollars and go have it done professionally. I have the money and I want it done right.
 

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Just don't run it anymore until its done right. A lack of oil can kill the compressor. There was probably still some oil left in the accumulator though so I doubt you hurt anything.
 
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