1985 4 runner with 22RE - Mystery plug

Doc279 · 11-15-2006, 06:17 AM

I found a plug on the engine harness that I can't identify. The plug is just below the intake runners and above the starter. Can anybody help indentify what this plug is for and where it goes ?

I am having cold start issues - the initial start each day is a long crank to get running. The engine starts fine the rest of the day.

Here is the mystery plug:

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phorunninduke · 11-15-2006, 06:53 AM

I believe that plug has something to do with automatic transmissions.

Doc279 · 11-15-2006, 07:08 AM

Quote:

Originally Posted by phorunninduke

I believe that plug has something to do with automatic transmissions.

I have a 5 speed manual tranny.

4Crawler · 11-15-2006, 09:07 AM

I have the same, unused green plug on my '85:

As noted, I think it is part of the A/T wiring, probably for the coolant temperature sender. On an M/T truck, it is not used.

phorunninduke · 11-15-2006, 02:22 PM

Quote:

Originally Posted by Doc279

I have a 5 speed manual tranny.

I guess it was too early in the morning for me. I meant to finish my statement with, " it is unused if you have a manual transmission."

**waskillywabbit** · 11-15-2006, 02:40 PM

Yep, I have one on both of mine...I always figured it was an AT thing.

Elton · 11-15-2006, 02:42 PM

i have lots of unused plugs on most of my toyotas

84sr5yoty · 11-16-2006, 08:33 AM

Quote:

Originally Posted by Doc279

I am having cold start issues - the initial start each day is a long crank to get running. The engine starts fine the rest of the day.

95% of the time the cold start injector time switch is what causes this problem. It can be ohmed out but I have the specs on hand at this time; maybe someone else will chime in.

toyota_mdt_tech · 11-30-2006, 08:26 PM

Quote:

Originally Posted by 84sr5yoty

95% of the time the cold start injector time switch is what causes this problem. It can be ohmed out but I have the specs on hand at this time; maybe someone else will chime in.

No way, cause you are dead one! Its a 2 pin connector, and on the 85, should be brown in color, mount on the front of the intake. But it could be green in color, but it will be 2 pins!

85TurboRunner · 11-30-2006, 09:53 PM

i dont have much to offer on the plug, but you have a very clean engine bay,

looks good.

Doc279 · 12-01-2006, 05:48 AM

I keep it clean on purpose ! I don't like to get dirty everytime I raise the hood ! It also helps to pinpoint problems before they become bigger !

It was pretty dirty when I purchased the 85, 6 months of tinkering and tweaking and it is coming together. I'm daily driving the 85 and I travel
during the week. I logged 1000 miles this week.

This thing is a TROOPER ! I can run 70 - 75 miles an hour and I'm getting about 19mpg. It don't shake, rattle or complain - I LIKE it !

11-15-2006, 09:07 AM	#4 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,828	I have the same, unused green plug on my '85: As noted, I think it is part of the A/T wiring, probably for the coolant temperature sender. On an M/T truck, it is not used. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club

11-15-2006, 02:40 PM	#6 (permalink)
waskillywabbit Super Moderator-Sponsoring Member Staff Join Date: Jul 2003 Location: Tuscaloosa, AL Posts: 14,548	Yep, I have one on both of mine...I always figured it was an AT thing. __________________ WabFab Off-Road, LLC MySpace Twitter Facebook 7th Annual South East 4Runner Jamboree, 2010 The toughest part of a Jeep is the chick driving it. WabFab Off-Road 4th Anniversary Sale

11-15-2006, 02:42 PM	#7 (permalink)
Elton Contributing Member Join Date: Jul 2005 Location: Siletz,Oregon Posts: 10,647	i have lots of unused plugs on most of my toyotas __________________ My Truck 98 4runner SR5 3.4L 5spd 4x4 E-Locker Mods Mom 07 Tundra d-cab limited 5.7L 4x4 auto sister 92 pickup SR5 X-cab 3.0L 5spd 4x4 Papa 89 Pickup SR5 X-cab 4x4 3.0L 5spd/98 4runner SR5 4x4 auto 3.4L R.I.P 91 4runner SR5 4x4 3.0L 5spd Totaled 5/13/06 My Wreck

11-30-2006, 09:53 PM	#10 (permalink)
85TurboRunner Registered User Join Date: Aug 2004 Location: Vancouver WA Posts: 1,063	i dont have much to offer on the plug, but you have a very clean engine bay, looks good. __________________ 1985 4runner 22re 5spd.

12-01-2006, 05:48 AM	#11 (permalink)
Doc279 Contributing Member Join Date: Jan 2004 Location: Maryville, TN 37803 Posts: 910	I keep it clean on purpose ! I don't like to get dirty everytime I raise the hood ! It also helps to pinpoint problems before they become bigger ! It was pretty dirty when I purchased the 85, 6 months of tinkering and tweaking and it is coming together. I'm daily driving the 85 and I travel during the week. I logged 1000 miles this week. This thing is a TROOPER ! I can run 70 - 75 miles an hour and I'm getting about 19mpg. It don't shake, rattle or complain - I LIKE it ! __________________ "Life's to short !!! Let's drink a couple - cold beers ! 1985 4 runner - pretty much stock but it kicks butt stock !!!!!!!! 30" bridgestone duellers on black steelies. More to come !

11-15-2006, 06:53 AM	#2 (permalink)
phorunninduke Banned Join Date: Nov 2003 Location: Intercourse, PA Posts: 1,479	I believe that plug has something to do with automatic transmissions.

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