Mark,

I never thought of that. I am also located near Seattle. Actually in Poulsbo (Kitsap County). What are you doing this weekend? :wink:

 

My son is coming in this weekend to get grease up to his ears on my own list of projects.

Sorry man... My weekends are pretty full through the summer. Dang man, you're a ferry ride across (or a long drive around) so heading over there in the middle of the week could be hard too.

Troll man Troll! You should be able to find someone over there.

 

I think Mike was making sure his ECU and engine harness were conpatable. The ORS conversion harness doesn't connect the ECU to the engine harness that is just Toyota factory wiring there.

 

Mark. Sent you a PM

 

Right back at cha'!

 

Pozi, if you post up some pics maybe some of us can spot something wrong.

 

Good idea. I will take some pics tonight (I am at "work" right now) to include the connectors not being used on the underside of the 3.4 engine wiring harness.

 

Ok I tested with a OBDII scanner and these are the codes I come up with. I have no idea what the IAT sensor is. Any help?

P1300 Igniter Circuit Malfunction No. 1
P0100 Mass or Volume Air Flow Circuit Malfunction
P0110 IAT Circuit Malfunction

 

KICKIN'! You've got new information to go on!

IAT is intake air temp, the ECU uses that reading to help with adjusting the fuel mixture... Given that you're getting that and the P0100, I'm wondering if your MAF is wired correctly. I was throwing those codes when I was trying to wire in a Supra MAF.

Dunno about the P1300...

 

This is from the FSM about code p1300. Sorry about the size of the picture.

 

Hey Pozi, it sounds like you could have a possible open or shoerted connection in your engine harness. Those codes seem to lead to either the wiring or the ecu.

 

hek,

Did you use the ORS harness in your swap? This is very interesting because it seems that the ECU is not the problem because I have two ECUs and it does not seem very likely that both are bad. It looks like I am back to tracing wires?

 

Pozi... you may wanna drop a line to this guy:

https://www.yotatech.com/forums/f131/3-4-conversion-wiring-help-89798/

You guys are going at this in different ways, but there may be some crossover where you could help one-another.


Did you check the MAF?

 

Pozi, it sounds like it keeps pointing back to that igniter circuit so I'd at least start tracing wires and checking for continuity on those first (shouldn't be too bad to verify that part at all.

 

I have not done any checking of the MAF sensor just as I did not check the O2 sensors because having a bad MAF sensor should not cause the spark plugs from firing right? As it sits right now I have the air intake removed without the MAF hooked up. However when it is installed and connected I get the same results.

I have not had a chance to trace the wires as of yet.

 

Sorry it took so long to reply. I did my own wiring and it worked out pretty good. Man, I sure hope you get that thing running soon. keep us updated.

 

Ok made a lot of head way over the weekend.

It is looking like my engine IS NOT a 98 like I had originally thought. And I have no idea which year engine it is.

The picture shown below is the from the engine wiring diagram FOR A 98 4Runner. The numbers I wrote in are the actual terminals where the indicated wires are terminated on connector E9 (as indicated in the 2nd picture).

Can anyone tell by the pictures what year engine I have??????

 

There is a VIN plate on the engine somewhere either the front of the rear. If you get that VIN you can have a dealer run it for you or use an online source and it will brake it down as to vehicle, year, tranny, and so on.

What does the MAF sensor look like and what color are your fuel injectors?

Gadget

 

When looking at the plug schematics like you have there, you have to view it as if the plug is facing you with the wires going away from you. Many times this gets people completely backwards and causes all kinds of problems.

This is why when I do connection guides for the different calibration units URD sells I use the ECU layout that would be as if you are looking at the plug with the wires going away from you to and into the plug. This is how you would view it when the plug is plugged into the ECU.

Gadget

 

Sounds like you have finally been making some headway (I suspected an issue with the wiring and I am glad to see my gut was not totally off base in this case). I second Gadget's request on the info for injectors and MAF (assuming both are original to the motor), but more importantly find that VIN number on the engine and have the dealer cross reference it to find out exactly what year motor you have in there (I assume you have already cross referenced the 2 ECUs you have so you know the years on those).