Yotav6power91

I bought a 3.4 engine from a company near me for a decent price but the probably is I have no idea what year or model the engine came from and need to know what year at least it's from so I know what parts to get for it. All I know it's newer then 1997 because it has three wires for the throttle position sensor when the mid 1997 and older 3.4 had 4 wires for the throttle position sensor. So I am wondering is there any other changes over the year that can be figured out the year by??

Hadmatt54

Is it coil on plug? If so that would be after mid 98.

Yotav6power91

The ignition coil? On the spark plugs?

Yotav6power91

The ignition coil? On the spark plugs?

SacRunner

Did you get anything else or JUST the motor? Did you get the engine harness, ECU, or any of the other things needed for the swap?

Yotav6power91

I got the ecu and the engine harness but the harness is all cut up from when they removed the motor

SacRunner

Look up the ECU part number and find where it was used. Type the number in to the Google machine, then go find the Toyota Part Zone link (or any of the others) and see if it list applications.

They made an ECU specific to every model, option, and year, so if you can track down info on the ECU you can find where that motor came from, assuming of course that they both came from the same donor.

Yotav6power91

Problem is that like 2 or 3 numbers on the ecu are scraped off. Was sure if I can just bring it to toyota and have them plug it in or something to figure it out

SacRunner

It's a shot in the dark, but could you post the part number (with an X for the unknown number), or a picture of the ECU?

Is there a part number tag on the engine harness still?

The other thing to try, is that I've heard that there's a VIN tag on the motor somewhere behind the timing cover, that could prove useful.

Yotav6power91

Ecu 8966xx26700. I'm taking the timing cover off now to see what's behind there

Yotav6power91

And sorry about some of the post. Phone said it could upload any photos that why I wrote out the part number but guess it did post the pic

Yotav6power91

This is what I got when I search this part number

SacRunner

So based on the part numbers for the ECUs I was looking at for my swap, it looks like you're only missing one number, 1, which would give you a part number of:

89661-26700

Looking around online for that part number, it looks like it's from a 2000 2wd Van that doesn't look like it was offered in the US.

Does this look the same as yours?
http://www.ebay.com/itm/00-TOYOTA-GR...-/370803491119

If it is, you may have a mess on your hands.

Yotav6power91

The numbers under the part number arnt the same as mine. But I I'm not sure if you saw my other picture I posted it might be a 2000-2003 tundra. But I need to get a new ecu for a
Manual transmission and a new wired harness

Yotav6power91

Well after looking online you might be right but hopefully I can just buy a 200o manual ecu and harness and make it work

Yotav6power91

I also just notice some of the 3.4s had the oil filter in the front of the engine while on mine it's at the rear of the engine. So what does that tell me?

JasonYota

iTrader: (1)

All the ones I've seen the oil filter is in the front, and there is an oil cooler at the rear.

JasonYota

iTrader: (1)

If you bought local would the company know what the engine came from? They must have some paper work on it.

Yotav6power91

I called the company back up and they have no paper work on any of the engines they own

JasonYota

iTrader: (1)

That makes no sense unless there stolen. Any decent company will have information on their inventory, buying, selling etc.