Calling all you Diagnostic Gurus | SOLVED Stumbling on hard acceleration THANKS EVERYONE (2 Viewers)

Joined
Nov 9, 2012
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Olathe, KS, USA
Joined
Nov 9, 2012
Messages
10,568
Location
Olathe, KS, USA
In case anyone is wondering what oscilloscope I’m using it’s a home made bit that I put together when I did my custom gauges.

It may not be pretty but for under $15 it gets the job done. And it’s super easy to upload data logs to the interwebs.
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View attachment 2526934
Remember, Toyota grounds the injector to fire. That would indicate a short (having an extra fire) rather than an ECU problem. I would look at the harness as well.
 

SmokingRocks

I bought a Cruiser to keep miles off my Cruiser
Joined
Oct 6, 2014
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Colorado
Well the sheathing on the harness wasn't in good condition when I got to it...
62986495472__1C490B44-C5D4-4C49-911E-6C9B31C0DB4F.jpeg



I'm doing the quick fix until I can get a replacement harness.
IMG_4050.JPEG
 

SmokingRocks

I bought a Cruiser to keep miles off my Cruiser
Joined
Oct 6, 2014
Messages
3,432
Location
Colorado
My wife got an action shot of me zip tying the temp harness out of the way of the throttle stop. Blessed to have Found a good lady that puts up with my grease stains and long hours in the garage.

7D50E146-9A2F-4B88-98D1-11F1BD88347C.jpeg


Big thanks to everyone who helped durring this process.
@jonheld
@White Stripe
@blkprj80
@Rusty Marlin
@BILT4ME
@Cruiser Vic

and everyone else, thanks dudes!
 
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HESITATION IS GONE!!!!!!!!! YAAAAAAAAYYYYYYY, and it feels like it's got much better power.


Going to be in the market for a replacement main engine harness now.
You are more than capable of fixing that harness. More than likely it's just around the EGR pipe. Usually just separating the wires and re taping them.
Unless it's really bad everywhere else.
 

SmokingRocks

I bought a Cruiser to keep miles off my Cruiser
Joined
Oct 6, 2014
Messages
3,432
Location
Colorado
You are more than capable of fixing that harness. More than likely it's just around the EGR pipe. Usually just separating the wires and re taping them.
Unless it's really bad everywhere else.
I'm aware, check my build thread for all the electrical work I've already done on this thing. When it comes to permanent repairs I don't half-ass them, so in this case, I'd pull the whole harness off the vehicle, strip it down find the issue, repair it, likely replace many of the connectors, sheath then reinstall it. So if I'm going to do that then I'd rather get another replacement harness from a donor vehicle, since they are NLA new, to refresh on the bench before ripping into the rig. That way I minimize my downtime and have spares.
 

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