Cali emissions engine swap... I'm stumped

VaYotaDude

VaYotaDude

New member
About 2 years ago, I had the misfortune of suffering from the pink milkshake. I've limped the trans along since but it's finally given up. In preparation for this day, I purchased a salvage truck from a member here, and decided to swap out the motor as well, since mine had over 315k and leaked oil like CRAZY! Started the monumental task this past weekend, pulled the motor and trans from the donor truck very easily, pulled the same from my truck with a bit more difficulty, but nothing TOO crazy. That's when it went down hill. It appears that the donor is a cali emissions truck, mine is not. Physically, the only differences I can identify are the exhaust (easily solved at an exhaust shop) and the dipstick for the trans (swap pans, no biggie). My concern now, however, is one I have not been able to determine an answer to... is there anything ELECTRONICALLY different, or anything I'm missing that's going to give me grief? Everything appears on the surface to be physically compatible, minus the aforementioned 2 issues... anyone have any insight?
 
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What two years are we talking about?

I thought toyo didn't bother with a cali and non-cali version so they were all the same? What say others?
 
Cali./Fed is not a problem, given that you are keeping your old exhaust with the standard o2 sensor in front. Cali's use a wideband A/F sensor. It's a BIG issue if you have a throttle-by-wire from 2001 or 2002 all of which are also Cali. type. Then you would have to swap your throttle body back in.

Someone out there would love that TBW throttle body, if you have one. You have to swap the whole thing to fix the idle by-pass valve.
 
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jgue467 said:
What two years are we talking about?

I thought toyo didn't bother with a cali and non-cali version so they were all the same? What say others?
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There were two versions in 1999 and 2000. Then in 2001 and 2002 the Cali. standard was adopted for all states.
 
Donor is a 2000 cali emissions, patient is a 99 federal... so if I'm understanding correctly, as long as I keep the 99 02 sensors intact, everything else should be fine?
 
VaYotaDude said:
Donor is a 2000 cali emissions, patient is a 99 federal... so if I'm understanding correctly, as long as I keep the 99 02 sensors intact, everything else should be fine?
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Yep. You're good. Injectors are the same, MAF is the same, Idle bypass is the same. Likewise knock sensors, cam and crank sensors, etc. '99 and '00 are electrical twins, so that is in your favor.
 
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You don't need an exhaust shop to do anything for you. Pull the exhaust pieces off of the original engine that are different and install them on the new engine.

I did the opposite swap, 49-state engine into a California vehicle. I had to swap the upper intake and throttle body off of my original engine, but that's because my donor was an '04 w/manual transmission and mine is an '00 w/automatic.
 
TheDurk said:
Yep. You're good. Injectors are the same, MAF is the same, Idle bypass is the same. Likewise knock sensors, cam and crank sensors, etc. '99 and '00 are electrical twins, so that is in your favor.
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:reddance::reddance: Awesome!! Thanks! That's EXACTLY what I wanted to hear
 
csp said:
You don't need an exhaust shop to do anything for you. Pull the exhaust pieces off of the original engine that are different and install them on the new engine.

I did the opposite swap, 49-state engine into a California vehicle. I had to swap the upper intake and throttle body off of my original engine, but that's because my donor was an '04 w/manual transmission and mine is an '00 w/automatic.
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Eh... the manifold bolts look AWFUL, I've already rung off 2 on the exhaust, really not trying to break the studs in the head....
 
Update: it's in, wired, and plumbing 75% complete, but I've hit a roadblock... the o2 sensor prior to the cat on the 99 exhaust does not match the connector on the 2000/cali harness. Wiring is different colors so cutting and splicing the concord from the old harness onto the new harness is gonna be tricky without a wiring diagram. Anyone else ever had this issue or a work around? Replacing the o2 sensor with the cali version is my last resort, the studs on the original are so rusted I doubt I can get it out, plus I question if the fed computer would properly address a cali wideband sensor... not to mention the cost...
 
VaYotaDude said:
Update: it's in, wired, and plumbing 75% complete, but I've hit a roadblock... the o2 sensor prior to the cat on the 99 exhaust does not match the connector on the 2000/cali harness. Wiring is different colors so cutting and splicing the concord from the old harness onto the new harness is gonna be tricky without a wiring diagram. Anyone else ever had this issue or a work around? Replacing the o2 sensor with the cali version is my last resort, the studs on the original are so rusted I doubt I can get it out, plus I question if the fed computer would properly address a cali wideband sensor... not to mention the cost...
Click to expand...



Sent a PM.
 
D Farms said:
you need to use the 99 wiring harness.
Click to expand...

Correct. I could give you the wire colors to match heater, and signal on the sensor, but but two of them feed to different pins at the ECU so then you would have to repin those wires. The fourth wire on the A/F is power and on the O2 it's a ground. So that gets messy. I also don't know what other pin differences there are between a Cali. 2000 and a 49-state '99 ECU. There may well be more. Much safer to keep ECU and harness original.

If the '99 harness is gone. I'm willing to try to help you adapt, but it will be something of a pain, and I doubt we get it right the first time.
 
Remove the exhaust parts. There are methods to keep from breaking the studs/bolts. Google is your friend.
 
Thanks Doc for the conversation and guidance! Swapped harnesses, exhaust is mated and it runs like a champ with no codes! It was a fantastic learning experience!
 
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