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Topic: clearing codes (solved) (Read 4651 times) previous topic - next topic

Re: clearing codes

Reply #15 –
You are right. It's time to regroup. In '84 the cars with 5.8L engines did not use the EEC-IV system. They use a MCU and a feed back carb. You don't say what year the Bronco is and what the fuel delivery system is.
Besides it is considered a truck.

Re: clearing codes

Reply #16 –
1990 ford bronco 5.8 liter,, sorry bout that,, im such a dummy.

but,,
it has the EECIV system with the exact self test connections as on our cars.
Same TFI moudule and sprout connector ect ect. 

i dont see why it differes.

Re: clearing codes

Reply #17 –
We are not confusing "On demand" codes with "Continuous memory"
 codes are we?
The on demand codes are a result of the "Quick Test" detecting and reporting these codes. They are not from memory and can not be reset.

When the KOEO runs the on demand codes are reported first. After the last on demand code there is a six to nine second pause then a single seperator pulse followed by another six to nine second pause. Then the continuous memory codes are read out.

Only the continuous memory codes can be reset.

Re: clearing codes

Reply #18 –
:bowdown:
I knew something would finally click.

ill have to report back to you on that one.

here is what i do know
koeo
my first string of codes dump out,,,,,,,,
then they repeat themselves once more
(im calling these my hard faults)

then one single separater pulse

then my other codes dump
then they repeat themselves once again
(im calling these my memory codes)

yesterday i waited for the "on demand" codes to finish up
then...
i was able to still see the "continuous memory codes" still present.

but.
you got me curious now and second guessing myself.
ill report back and see what i come up with on the continuous memory codes.

thanks for lending me a hand. :D

Re: clearing codes

Reply #19 –
Quote
yesterday i waited for the "on demand" codes to finish up
then...
i was able to still see the "continuous memory codes" still present.
That's the weird part. The second group should be erased with the jumper pull, and shouldn't show up until the truck has been run again. I assume it has an electic fuel pump like ours... when you pull the jumper during the codes, does the pump run for a second while the computer (supposedly) resets and erases itself?

On the other hand, could those possible voltage spikes (that you said screwed with the voltmeter and tach) have zapped the computer, and now it can't be erased?
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: clearing codes

Reply #20 –
Quote from: MasterBlaster
That's the weird part. The second group should be erased with the jumper pull, and shouldn't show up until the truck has been run again. I assume it has an electic fuel pump like ours... when you pull the jumper during the codes, does the pump run for a second while the computer (supposedly) resets and erases itself?

On the other hand, could those possible voltage spikes (that you said screwed with the voltmeter and tach) have zapped the computer, and now it can't be erased?


electric pump , yes
when i pull the jumper, yes the fuel pump runs then stops.

i dont think there was a spike.  When it was acting up, the tac would slowly drop below 500 and the alt would also decrease proportionaly. Suddenly the engine would recover and alt meter would bump back up to about 15 im thinking then the cycle would repeat till it either stalled or recovered.  This was all happening when the clutch was applied.  Now that ive fixed that problem, im still pluggig away on clearing the codes.  I'm gonna pull the KOER codes when the wife gets back (whenever that might be today)

Re: clearing codes

Reply #21 –
******SOLVED----finally got em to clear.
I was only able to clear memory codes doing the KOER test.  I was not able to clear memory codes with the KOEO.

ok,
i pulled the KOER codes and let it go through all the motions and recorded 6 codes total.

I ran the cycle again and interupted the eec by pulling the jumper.
Of the 6 codes, only three remained.  I guess i did something right.

so,, now i have three codes in the system
but they were preceeded by a
code 4
code 1
ill assume one is the separater and the other is the goose signal. I dont think i goosed it enough though.

here is what i have now so ill have to troubleshoot.

26 Mass Air Flow (MAF) or Vane Air Flow (VAF) out of range - MAF VAF
 Transmission Oil Temperature (TOT) sensor out of range - Transmissions 

maybe cause its not an aod anymore,, or maybe i have a MAF issue,,any help on this.

77  System did not receive "goose" test - see TESTS 
maybe i did not goose it correctly,, how and when to goose is my question to anyone.

65 Check intermittent HO2S (signal or ground) - Fuel Control
 (R) E4OD truck - cycle OD cancel switch after engine ID is received - Transmissions
My tranny use to be an E4OD,, now its a 5speed.  Not sure what to make of this cause there is a button on the dash called Overdrive.  I think OD was depressed when it should not have been. Im pretty sure that when the OD light is on,, that means its NOT in overdrive.  Kind of bass akwards if you ask me.

all in all,, looks like i may or may not have issues.

any thoughts.,,anyone?

Re: clearing codes (solved)

Reply #22 –
The code 4 in the KOER test is half the # of cylinders 2=4cyl. 3=6cyl, 4=8cyl(guess it a good thing Ford never had a 3 or 5 cyl engine LOL). the 1 is a seperator code, tells you fault codes will follow...

Do the "goose test" just after you get the code 4 and before the 1.

Other than the 77, the rest of the codes are most likely because you still using the auto EEC...

Re: clearing codes (solved)

Reply #23 –
Quote from: TurboCoupe50
guess it a good thing Ford never had a 3 or 5 cyl engine QUOTE]

 :giggle:  :rollin:

good close for the topic tom.

Re: clearing codes (solved)

Reply #24 –
1990 ford bronco 351w eecIV
pulled codes with a jumper and a buzzer instead of a light.

ok,,
As i said,, i would give the bronco some time to cycle through and log in the codes it has in memory.

here is what is in the system now.
21  Engine Coolant Temperature (ECT) sensor out of range - ECT 
this looks like it could be an actual problem
I need to find out the resistance range of this part and check

26 Mass Air Flow (MAF) or Vane Air Flow (VAF) out of range - MAF VAF
 Transmission Oil Temperature (TOT) sensor out of range - Transmissions 
this appears to say a couple different things.
MAF problem
or
it could be not detecting whatever in the AOD because we swapped it to a 5 speed.

?how can i check the MAF sensor.  Someone here once posted a procedure but i lost it.


65 Check intermittent HO2S (signal or ground) - Fuel Control
 (R) E4OD truck - cycle OD cancel switch after engine ID is received - Transmissions
 1984 3.8L ONLY - O, M Battery voltage high (check for electrical system overcharging) 
this could be an actual code with the o2
or
not a real code cause there is no E4OD tanny anymore.  I did not push in the overdrive button on the dash so maybe thats what it sees
?How much voltage was involved with the O2 sensor cause i think i remember something like .3 to .5mvdc was good and if its near .9 its bad.,,,or was that AC?