TACOMA v8 swap

[dawezel1]

I have a 96 tacoma with obd2 skanner,Im puttin a chevy smallblock in but need to find a way to make the obd2 work for state inspection? can i just take all sensors from motor and leave them hooked up or???? II just need to find a way so that when they plug into my truck the computer tells them its runnin the way it should PLEASE HELP!!!!! ASAP

[DrVic723]

You need to buy an EFI kit / harness that has the obd2 incorperated.

[dawezel1]

do you know if painless makes a kit like that or know of other companys that do so?? I have a tpi setup off of a 86 but doesnt have obd2? so theres no way around it? i need to get a efi setup on it??

[MrSammi]

Are you trying to run the 350's EFI w/Toyota ECM? 6 cyl ECM not gonna be happy on 8 cyl engine.

In Cali... emissions laws regarding swaps are you need to run the complete emissions system off of the donor vehicle, and that whole system must be the same model year or newer than the vehicle it is swapped into.

I think you'll need to get a harness, ecm, and ??? off of a newer (than your Taco) Chevy ...and because GM had OBDII since '96... that would be close to making the vehicle meet your state's emissions rules... have you researched EXACTLY what your state's laws are and what procedures you are going to have to go through to get there?

Good project to tackle!

[dawezel1]

i want to run carb but mite have to do efi? alls i have to do is have the truck tell the compu at inspection say it runnin the way it should,im thinkin that i mite be able to take all sensors of motor and leave them pluged in if that would work i dunno??

[DrVic723]

How would that work? Sensors are there so that they can SENCE when something is not working properly. A dangling sensor probably will not qualify as functional... If you are referring to a way to fool the computer you can measure the resistance of the sensors on your multimeter and then cut the sensor out and replace it with an equivalent resistor... But I highly doubt the inspector will be that retarded to let that slip. "Hey what's that big carb / filter looking thing on top of your motor? Oh well, if the computer isn't throwing a code then it must be legit..."

[dawezel1]

I think that would work with the resistor trick , I have a friend that does state inspection, he said "do whatever, just make it so that the truck tells the comp that everthings ok and I'll pass it".When I get truck inspected they dont look under hood just plug it in ,lift it, and visual insection. Thank you so much for the idea of what to do !! I'll let you know if it works thanks ballistic fab!!

[Maytag]

(For Oregon at least)

To be able to pass DEQ with an OBDII vehicle, you can only put an equivelant year newer engine in, it must have at least all of the same emissions devices as your stock engine

You can not put a TPI engine into a vehicle that came stock with milti point injection

When you bring the vehicle into get emissions tested, they will still plug into the data link port, and it still needs to read all systems clear, and fully functional



I just helped a friend do an engine swap (LS1 into RX7) and it was a pain getting all the sensors to work and pass DEQ, but we did get it to work

[wslytoy82]

It sounds to me like you don't know wtf you're doing and you should just buy a ramjet 350 and slap that in. The sensors on your Tacoma engine(5VZ or 3RZ) won't send any output to the data link port to tell an obdII scanner if everything is working properly or improperly. You can't just unplug them and leave them dangling.... That's the dumbest shit I've ever heard of. There are plenty of companies that make EFI kits for 350's now days, a lot are just TBI(throttle body injection), so if your state law says the swapped motor must be Multiport Fuel Injection, then those kits will not work for you(legally anyways). Here in Ms, we don't have to worry about all that bullshit

[dawezel1]

luckly my state doesnt have the emission bs so far .

[dawezel1]

i know i dont know what im talkin bout with all the odb2 shit that why i ask for help in that department! Why would i spend way more money on something i dont need?But i think that the resistor idea will work ,my friend that gives me a sticker knows what im doin and doesnt care he wont look under hood or anything like that just plug in compu say itz good then he gives me a sticker.

[T1TNDRA]

Originally Posted by dawezel1

I have a 96 tacoma with obd2 skanner,Im puttin a chevy smallblock in but need to find a way to make the obd2 work for state inspection? can i just take all sensors from motor and leave them hooked up or???? II just need to find a way so that when they plug into my truck the computer tells them its runnin the way it should PLEASE HELP!!!!! ASAP

y not put a TOYOTA v8 in that thing?

[jtaco1]

Let me understand here, you want to drop a SBC into your Tacoma but keep the Toyota cumputer and engine wiring stuff??? I would think that you would need to pull all the Tacoma related engine harness and computer and install your new same year or newer SBC and run that computer, which you will get a scan port with.

A project that I am working on, yet a little more simplistic and easy, is a 4.3 Chevy from a 2000 Blazer into my 1971 FJ40. Now I am going to have the harness redone and the computer flashed. This will net me a stand alone engine harness and computer that will have the scan port that can be plugged into for state inspection if need be.

You can do the exact same thing with a fuel injected SBC, you will just have to run the same emmissions equipment on ith that came on your truck from the factory ie; how ever many catolytic converters, muffler and O2 sensors. THis is how it works in PA unles your vehicle is over 15 years old, I believe, and then you can register it as a classic and not have to deal with emmissions requirements.

[T1TNDRA]

cheaper and cleaner, practically plugs in. 4.0 litre outta a lexus sc400 is like 500 with comp and harness. and you still get the dependability of and toyota, makes 250hp, plenty for a toyota.

[snoop dogg]

Originally Posted by dawezel1

luckly my state doesnt have the emission bs so far .

wait am i retarded? If your state doesn't have emissions...why are you worrying?

Isn't it by county in the state anyway? I know in georgia some counties you have to pass emissions and inspections...and in other counties, you just have to get it registered each year and not deal with getting registered due to emissions and it doesn't have to do with the age of the vehicle

[snoop dogg]

Originally Posted by dawezel1

i know i dont know what im talkin bout with all the odb2 shit that why i ask for help in that department! Why would i spend way more money on something i dont need?But i think that the resistor idea will work ,my friend that gives me a sticker knows what im doin and doesnt care he wont look under hood or anything like that just plug in compu say itz good then he gives me a sticker.

why don't you just slip him a $50 if he's just going to give you the sticker if he knows its not legit anyway

[powerline-k9]

he already has a sbc. and New Hampshire won't inspect it if it says one of the sensors are wrong. we don't have to hook up to the snuffer yet but the ECU needs to read clean. anything 96 and up has to plug in. my thoughts are to buy a 95 dash with VIN# so you don't have to worry about obd2. either that or put resistors in place of the sensors. really your only 2 options unless you move to kentucky

[dawezel1]

thankz for all the addvise of whatto try i think that ill b tryin the resistor trick hope that workz!

[Shibby24]

I feel stupider after reading this thread. Why not make it legal? What happens next year when your buddy no longer works for the inspection place? Make it legal or don't bother IMHO.

[powerline-k9]

i'm pretty sure that's what he is trying to do. "make it legal". and actually if you go by the book in NH you can't lift it, you can't change license plate frames. you can't change wheels you can't patch a rusty frame. but there is more laws that they let slide then they have that they inforce.