https://www.yotatech.com/forums/ 4th gen pickups and 3rd gen 4Runners en Fri, 22 May 2026 23:37:53 GMT vBulletin 60 https://www.yotatech.com/forums/images/misc/rss.jpg https://www.yotatech.com/forums/ https://www.yotatech.com/forums/f2/running-rich-long-post-lots-detail-320670/ Wed, 13 May 2026 15:09:39 GMT I’m at my wits end. Truck runs rich with CEL for P0172, P0300 and P0306. It failed emissions because the CEL was on. Replaced coils, plugs, wires, and upstream air/fuel with Denso or OE Toyota... I’m at my wits end. Truck runs rich with CEL for P0172, P0300 and P0306. It failed emissions because the CEL was on.

Replaced coils, plugs, wires, and upstream air/fuel with Denso or OE Toyota parts.

Checked compression… 150-160 across all cylinders. Not amazing but relatively equal.

On the monitor, it starts out okay and then fuel trims climb to -30 short and long term.

Leaked down held. Fuel pressure was high at 55psi, replaced the fuel pressure regulator and it went down to spec @ 42. (I thought maybe the high fuel pressure was pushing passed the closed injectors)

Clearing the computer and restarting the truck runs smooth until the it loads up and tries to lean out. Leading me to believe this is an electronic issue versus a mechanical one.

I have a used ECU that is currently having the immobilzer codes cleared in hopes that’s it.

any thoughts or things I’m missing?

’99 Limited 225k 3.4L Auto engine and trans are stock. ]]> fierohink https://www.yotatech.com/forums/f2/running-rich-long-post-lots-detail-320670/ https://www.yotatech.com/forums/f2/best-lightbar-setup-toyota-4runner-where-mount-what-buy-320666/ Sat, 09 May 2026 04:15:41 GMT Hey everyone! I recently picked up a 2022 Toyota 4Runner TRD Off-Road and I am seriously considering adding a lightbar for those late night trail runs. I have been browsing around but honestly... Hey everyone!

I recently picked up a 2022 Toyota 4Runner TRD Off-Road and I am seriously considering adding a lightbar for those late night trail runs. I have been browsing around but honestly feel a little overwhelmed by all the options out there. Should I go with a roof mount or a bumper mount?

If you have experience with a Toyota 4Runner lightbar setup, I would love to hear your thoughts! I want something that looks clean and does not mess with the aerodynamics too much. Also wondering about wiring and whether I need a relay harness. Any brand recommendations around the $150 to $300 range?

Appreciate any advice from you experienced runners out there! ]]> notele https://www.yotatech.com/forums/f2/best-lightbar-setup-toyota-4runner-where-mount-what-buy-320666/ https://www.yotatech.com/forums/f2/8-v6-differential-side-gear-320657/ Tue, 05 May 2026 23:05:25 GMT Hey guys I am trying to find a differential side gear for my 2002 4runner. Question I have are the sizes of them different on 8" 4cyl from 8"v6 or are they the same. If anybody has one they would like to let go of I'm interested. Any info greatly appreciated just got this rig in this condition. ]]> Fire547 https://www.yotatech.com/forums/f2/8-v6-differential-side-gear-320657/ https://www.yotatech.com/forums/f2/97-4runner-giving-me-fits-320645/ Sun, 26 Apr 2026 16:12:01 GMT Good morning everyone,

Long time since I posted.

I got a 97 4Runner that ran great when parked for the winter. Now it doesn't start. Cranks. But will not start. IAC was making some weird buzzing noises. So I replaced it along with TPS. It just cranks but will not start. If I hold the gas pedal down about half way it will start and sputter and run like garbage. If I let off the gas pedal it will die out. While it's running like garbage. Check engine light is on. So I hooked up my scanner and cannot connect to read codes. I swapped out ecm from a manual transmission, mine is an automatic. Same thing. Will not connect and not start. Have power at obd2 port and all fuses are good. I'm at a loss. Also. Have not checked fuel pressure. But I have plenty of fuel flow. Replaced fuel filter and the old one sounded like it had marbles floating around. Any help for next checks would be great. Against my better judgement. I'm about to slam a MAF in it and see what happens. ]]> weaselman https://www.yotatech.com/forums/f2/97-4runner-giving-me-fits-320645/ https://www.yotatech.com/forums/f2/rear-window-breakdown-320640/ Sat, 25 Apr 2026 03:11:55 GMT My 1998 4runner ltd has the usual issue with the rear window. I sometimes carry long lumber which I hang out the back window. I found out what happens if you have too much weight resting on the... My 1998 4runner ltd has the usual issue with the rear window. I sometimes carry long lumber which I hang out the back window. I found out what happens if you have too much weight resting on the window - one or both sides of the glass will drop down into the hatch. The reason is the window regulator has two scissor arms powered by the motor. At the end of these arms is a spherical pivot bolt which snaps into a plastic slider/roller bushing, which in turn slides/rolls in two metal guide rails attached to the window glass. Too much weight will cause the thin scissor arms to twist and the pivots to pop out of those plastic sliders.

In the future I think I will build a simple wood frame for my lumber to rest on instead of the window glass.

In my case it was simple to remove the regulator cover plates, raise the regulator and glass to about 3/4 closed, and pop the pivots back into their sliders by squeezing with channellock pliers. One of these sliders is cracked but still holding. Others have reported that you cannot buy those sliders or rails for the gen3, only the entire regulator assy. I do see used ones on Ebay. I have to wonder if some other toyota model uses those same plastic parts, otherwise drilling out the pivots and attaching a small ball bearing might be a lasting fix.

Does anyone have a manual page showing all the related parts belonging to the hatch? ]]> tns1 https://www.yotatech.com/forums/f2/rear-window-breakdown-320640/