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lean burn obd1
https://slantsix.org/forum/viewtopic.php?t=34707		 Page 3 of 4
Author:  SlantSixDan [ Wed Apr 08, 2009 6:42 pm ]
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Quote:
"K"-cars are like Ply Horizon, and Dodge Omni, other similar front wheel drive Mopars.
No, the Omni and Horizon (and TC3 and other derivative models are L-bodies, not the same or similar to K-cars. The K-cars are the Dodge Aries, Plymouth Reliant, and (many) derivative models. It is difficult to imagine anyone in North America who knows what a ½" wrench looks like and works as a mechanic, however informally, who does not know what a K-car is.

You got those books yet, Mr. Perkins...?
Quote:
From what I have found out, so far, it looks like that was only on 87 trucks and vans. Never on the slant six cars. Not on 86 or 89.
Well, it wouldn't be on '89 slant-6 trucks, because '87 was the last year for slant-6 trucks in North America. That same connector was on my '89 318 truck, so it's difficult to imagine it not being on '88s.
Author:  Reed [ Wed Apr 08, 2009 6:42 pm ]
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1987 was the last year of slant six sales in the US. It was only used in the 1987 truck and van offerings from Dodge. It also appears that 1987 was the only year that the slant six was ever OBD equipped.

K cars are a whole slew of cars and minivans that Chrysler built starting in the early 80s. It was basically Chrysler's first foray into the FWD platform. The K car platform lasted well into the 90s.
Author:  Mister_Perkins [ Wed Apr 08, 2009 7:08 pm ]
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I didnt know that. and no dan, I have not gotten those books yet. I mostly work on 90's to 09' model vehicles. I actually havent worked on another carburated vehicle other than mine own. Closest i've came was a 94 chevy blazer with throttle body. and thats only one step up from carburated. Good info tho. Thats kinda cool that I have the last year US version of my truck. Didnt know that either. Guess more research couldnt hurt, but its a lot easier asking you guys who know more about the old vehicles like mine. :wink:
Quote:
I think Dan is just kidding you. That site crashed a few years ago, and there is no one there, now. Meaning you might be the only slant sixer, with a OBD equiped slant, on this site.
That makes me feel special. hah 8)

Just curious.. what are your guys stock ECM #'s if you still have em installed or laying around? mines 4289908.
Author:  Reed [ Wed Apr 08, 2009 7:23 pm ]
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Quote:
Just curious.. what are your guys stock ECM #'s if you still have em installed or laying around? mines 4289908.
The vast majority of slant six powered vehicles don't have an ECM. Only vehicle equipped with the lean-burn system got one.

See HERE
Author:  SlantSixDan [ Wed Apr 08, 2009 7:47 pm ]
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ECM P/Ns from the final-edition '86-'87 Dodge Truck FPC:

4289 617 Man. Trans California
4289 615 Auto.Trans California
4289 908 Auto.Trans
4289 603 Man. Trans
4289 637 High Altitude

So...no '86/'87 difference in ECM P/Ns, which is certainly very interesting. Confirmed in Standard catalogue:

EM172 ('86 and '87 auto trans, Federal/Canada)
EM10535 ('86 and '87 auto trans, California)
EM10536 ('86 and '87 manual trans, California)
EM603 ('86 and '87 manual trans, Fed/Can)

Engine wiring harness P/Ns from the same FPC:

4362 071 Exc. Calif. 1986
4362 391 1987
4362 072 Calif. 1986
4362 263 Snow Fiter (Eng.)

I have no idea what "Snow Fiter" is or why it has its own engine wiring harness that is apparently the same in '86 and '87, but it's very interesting to see that '86 and '87 have different engine wiring harnesses, even as they use the same ECM. H'mmmmm...this suggests the '86 trucks would talk to a scanner except for the lack of connector. In any event, I cannot imagine an '87 having much to say to a scanner; my '89 had basic scanner interface. I could read and reset codes with about the same resolution as if I were grabbing the flash codes via the "Check Engine" light with the key flick manœuvre, test a few actuators, and read the signals of most sensors.
Author:  Reed [ Wed Apr 08, 2009 8:02 pm ]
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Google Snow-Fiter:

"1971 was the last year for Sweptline Power Wagon Trucks and continued the with same available features as in previous years. One interesting option was the addition of a Snow-Fiter package that equipped the truck for snowplowing duty. This package could be had on Sweptline or Utiline trucks with slant-six or LA-318 engines installed and required heavy duty running gear options along with extra lights to accommidate it. "

http://board.moparts.org/ubbthreads/sho ... n=0&page=0

http://fortcollins.craigslist.org/cto/1089688252.html

Looks like "Snow-Fiter" was a special snowplow package that included a special light bar and a hydraulic pump on early models and electric lift on later models and a special bracket system to mount a snowplow on the front. I suspect the extra lights and electric lift motor required a special wiring harness.
Author:  Charrlie_S [ Thu Apr 09, 2009 5:45 am ]
Post subject: 
Quote:
Quote:
"K"-cars are like Ply Horizon, and Dodge Omni, other similar front wheel drive Mopars.
No, the Omni and Horizon (and TC3 and other derivative models are L-bodies, not the same or similar to K-cars. The K-cars are the Dodge Aries, Plymouth Reliant, and (many) derivative models. It is difficult to imagine anyone in North America who knows what a ½" wrench looks like and works as a mechanic, however informally, who does not know what a K-car is.
Opps, my bad. see what old age does to you? :oops:
Quote:
You got those books yet, Mr. Perkins...?
Quote:
From what I have found out, so far, it looks like that was only on 87 trucks and vans. Never on the slant six cars. Not on 86 or 89.
Well, it wouldn't be on '89 slant-6 trucks, because '87 was the last year for slant-6 trucks in North America. That same connector was on my '89 318 truck, so it's difficult to imagine it not being on '88s.
I meant not on 88 or 89 rear drive cars (only 8 cyl that year), I don't remember about trucks. If the truck was FI, then yes, it had OBD1 capability. If it was carb, I don't know (don't think so), without looking some more.
Author:  00spy [ Thu Apr 09, 2009 1:32 pm ]
Post subject: 
Quote:
1987 was the last year of slant six sales in the US. It was only used in the 1987 truck and van offerings from Dodge. It also appears that 1987 was the only year that the slant six was ever OBD equipped
So OBD killed the slant six :shock:
Author:  ceej [ Thu Apr 09, 2009 1:52 pm ]
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This is all very interesting. During a stint TDY with the Base police in the Navy, I had a Slant Six powered Dodge patrol truck. It was a government special order pickup. I believe it was an '86.

I swear it had a TBI unit.
It's been too long, and I was more interested in hitting the EM club than research at the time.
I wonder... And I'm not kidding.

I sure wish I'd taken a photo of it..

CJ
Author:  Reed [ Thu Apr 09, 2009 2:26 pm ]
Post subject: 
Quote:
OBD killed the slant six
Isn't that a song?

OBD killed the slant six motor
OBD killed the slant six motor
It's in my truck, and it's in my car
But it just wouldn't fit in the new K-car

Ok, that wasn't very good... :P
Author:  Joshie225 [ Thu Apr 09, 2009 2:37 pm ]
Post subject: 
Quote:
Quote:
1987 was the last year of slant six sales in the US. It was only used in the 1987 truck and van offerings from Dodge. It also appears that 1987 was the only year that the slant six was ever OBD equipped
So OBD killed the slant six :shock:
Actually the Dakota killed the /6. The Dakota was too short to fit the slant they built the 3.9L V6. The '87 3.9 was feedback carbureted like some late slants. The '88 3.9 got TBI and a roller cam.
Author:  00spy [ Thu Apr 09, 2009 2:40 pm ]
Post subject: 
Quote:
Quote:
OBD killed the slant six
Isn't that a song?

OBD killed the slant six motor
OBD killed the slant six motor
It's in my truck, and it's in my car
But it just wouldn't fit in the new K-car

Ok, that wasn't very good... :P
:bow:
Author:  Mister_Perkins [ Thu Apr 09, 2009 3:58 pm ]
Post subject: 
I was wondering why some of the /6's had the lean burn deal on the air cleaner. As far as the ECM OBD1 testing goes.. there isn't a lot of things that you can actually check. You have to start the engine, warm it up and then shut it off turn it in the on possition, set the choke open and disconnect the electric choke wiring. Then run the scan tool on it. theres actually quite a few codes that can show up though, i'll grab the book tomorrow and scan a few pages for you guys.
Author:  00spy [ Thu Apr 09, 2009 4:14 pm ]
Post subject: 
I think the lean burn comp. was first put on the air cleaner, and probably later moved, because of all the shaking and vibration was not good for it.

Dave
Author:  Reed [ Thu Apr 09, 2009 4:54 pm ]
Post subject: 
The "lean-burn"/"Spark Control Computer" began rearing its ugly head in the late 70s. Originally the computers were mounted on the air cleaner. In the early 80s, the computers moved to the firewall for vans, under the battery tray for trucks, and into the passenger kick panel (or under the glovebox) for cop cars. For some odd reason Chrysler though the Lean Burn and Spark Control Computers deserved a call-out on the air cleaner lid, like the "340 Six-Pac" or "440 T-N-T" air cleaners of days gone by. Kind of makes me want a "225 Lean Burn" air cleaner sticker....
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