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  • May 11, 2024, 08:33:04 PM

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Author Topic: fuel in exhaust and only 5 cylinders  (Read 8021 times)

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Offline el-camino

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Re: fuel in exhaust and only 5 cylinders
« Reply #15 on: October 31, 2011, 09:29:33 AM »
ok, i don´t know why, but now comes the code :hello2:
code number 27
 Injector 3, and/or 4, and/or 5, and/or 6 output driver does not respond properly to the control signal.

whats going on ? ???
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greets from Sweden
Klaus

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Offline el-camino

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Re: fuel in exhaust and only 5 cylinders
« Reply #16 on: November 01, 2011, 09:59:18 AM »
just now i´m ready with the blink-test on the injector connectors.
Cylinder 1 -4 are blinking
not so cylinder 5 + 6
the test light is on but not flashing.
i checks the wires from the PCM to the injector connectors, the wires are ok.
and now ? bad PCM ?
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greets from Sweden
Klaus

www.forneby-hill.com

Offline Hawk258

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Re: fuel in exhaust and only 5 cylinders
« Reply #17 on: November 01, 2011, 01:06:49 PM »
ugh, sounds very suspect.
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Ingenuity through stupidity, Do something stupid and through Ingenuity you will find a way out of it.

1981 AMC Eagle (Currently in need of a bellhousing OR the project to iron it's self out)

1982 Subaru Brat White (Daily driver inheritence from mom ((Don't worry mom I won't break it))
other prior vehicles include:
1985 Dodge (OMNI) charger
1979 Dodge Ram Charger
1985 Dodge Diplomate
1982 Subaru wagon
1980 AMC Spirit
1982 AMC Eagle wagon (Was going to be parts car)

Offline ammachine390

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Re: fuel in exhaust and only 5 cylinders
« Reply #18 on: November 01, 2011, 01:33:07 PM »
Did you make sure that the injectors are receiving 12 volts when the key is on/running? The PCM should only ground the injectors, so make sure that the injectors have power before replacing the PCM.
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Dan
1981 AMC Concord DL 258 Auto

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Offline el-camino

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Re: fuel in exhaust and only 5 cylinders
« Reply #19 on: November 01, 2011, 01:51:32 PM »
thanks all.
i will check this tomorrow morning, but i think the injectors have 12V with ignition on.
but i check it again.
i´m a little confused.
when this 2 injectors become not a impulse (Ground) they are closed.
the fuel in the exhaust makes me crazy.
tomorrow morning i remove the fuel rail with the 6 injectors to inspect this crazy things.
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greets from Sweden
Klaus

www.forneby-hill.com

Offline el-camino

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Re: fuel in exhaust and only 5 cylinders
« Reply #20 on: November 02, 2011, 12:20:39 PM »
the last test is done. ;)
 i pull out the injectors with the fuel-rail and go to ignition.
 from injector 5 + 6 comes full power fuel, the other 4 are ok.
 the next step, i pull of the electrical connectors from injector 5 and 6 and go to ignition.
 now are all 6 injectors ok.
 fail signal from PCM ? ???
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greets from Sweden
Klaus

www.forneby-hill.com

Offline Jurjen

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Re: fuel in exhaust and only 5 cylinders
« Reply #21 on: November 02, 2011, 01:26:09 PM »
That is a smart test.
Looks like a motor management failure.
Can you swap connectors or swap injectors to find out where the fault is?
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Offline el-camino

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Re: fuel in exhaust and only 5 cylinders
« Reply #22 on: November 02, 2011, 05:29:28 PM »
Jurjen
yesterday i have tested the connectors from the injectors
 Cylinder 1 -4 are blinking
 not so cylinder 5 + 6
 the test light is on but not flashing: no ground signal
 i check also the wires from the PCM to the injector connectors, the wires are ok.

tomorrow i swap the connectors to have 100% points ;)
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greets from Sweden
Klaus

www.forneby-hill.com

Offline el-camino

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Re: fuel in exhaust and only 5 cylinders
« Reply #23 on: November 13, 2011, 12:38:44 PM »
today i plug the "new" PCM, YES :blob1:
the engine runs smooth and sounds good.
only one new code: 31
EVAP canister purge solenoid i think , i check it tommorow
thanks all for the help ;D
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greets from Sweden
Klaus

www.forneby-hill.com

Offline Jurjen

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Re: fuel in exhaust and only 5 cylinders
« Reply #24 on: November 13, 2011, 12:56:27 PM »
good news!
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"sparrows fly in flocks, eagles fly alone"

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Offline BenM

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Re: fuel in exhaust and only 5 cylinders
« Reply #25 on: November 14, 2011, 12:54:06 PM »
Good to hear. It's nice to get to the root of the problem without having replaced things that aren't broken.
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1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)
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