04-30-2017, 12:48 AM
forgive the obvious,but the first rule of hoses,are mark them A, B ,C. so they can not be mixed up and now more labor, finding the books,etc, to cure that.
first to to my egr choice page
http://www.fixkick.com/EGR-choice.html#index
then (USA cars) pick your year.
98 takes you here
http://www.fixkick.com/EGR-Gen3.html
on that page, is photo map of your system. (P means Pressure to Japanese I guess, or Vacuum side or Plenum side, ) 2 ways to remember it.
http://www.fixkick.com/sensors/EGR/96-EGR-map.jpg
open hood, look up, see that EPA mandated, Smog vacuum map, bingo EGR.
TO PROVE THE EGR IS NOT CAUSING ISSUES,. WE DEFEAT IT( OPEN HOOD SEE THE VACUUM MAP THERE, the map can be different, USA fed, USA CALIF or canada
the car is tuned up,
no ideal how long parked, yet.
engine is ok, great compression.
me, not sure what stumble means. (elborate that, misfire, ? felt, seen, heard, bogging, slight throttle hesitations> ) i cant drive it to witness all that... so....
1: cold engine, with index finger, exercise the diaphragm. it moves 1/4" (6mm) in and out and closes, if it does that good, as seen on my EGR pages.
if it is struck closed, it's not cause of STUMBLE.its dead now.
if its stuck open it is the cause. (the EGR is turn off parked, at idle. 3 ways) (vsv, ported vacuum and ecu commanded and zero speed now, = off)
2: the hose at the main EGR nipple can be unplugged, at the EGR main side, do not mess with those hoses on VSV on back of intake manifold. or get them mixed up, this is in USA called EGR2 system has 2 valves now. (95 back 1 valve)
VSV ,means there are 2 vacuum solenoid valves.
The 2 valves allow the 2 EGR tests to happen and tell owners whats failing, with 2 , P0400 codes, A and code B. its feature that is nice. here
Id bet the EGR is not the cause, but only tests prove this, we take it off, clean it (MAIN) make sure its clean at the seat then make it closed
it must close on its own, it has a spring inside and must close, if yes, put it back and remove hose, and put a golf tee in that vacuum sucking hose.
do not let any hose suck air, running, or engine can go lean and stumble.
ok now the EGR is defeated, 100% for testing, so stumbles now, sure it does.,all we did above is prove the engine stumbles with NO EGR. active.
end EGR (we can make it actually work later after fixing STUMBLE true cause (lots there are) stumble is reall MISFIRE>
misfire has over 50 cauese but is about 10 tests to find it, after a full tuneup.
working and slaving to find misfire with bad spark , and no tunes done, say in a decade is well ,just punishment to owners.
(quote and commented)
I have some updates, but I'm afraid they are are not really good. I plugged the ERG in just about every way possible and it still has the stumble. You may think I am stunned, but I'm still not 100% sure which hose to plug and where, so I tried them all.
Maybe someone can dig up a picture of the proper way to plug it. ( the map is under the hood see under hood EPA sticker , BINGO USA laws put that there.)see my links above, to my egr pages.
Today I plugged the hose at where I marked 2 on the EGR picture posted above (no change). I then plugged the "bark tube" or the one that puffs exhaust out (no change). Next I tried to plug both the "p" and "q" hose (no change). (the p and q , P goes to plemum side vac side, Q goes to main side (main EGR) as seen on my 96-98 egr page.
MY ERG PAGE SHOWS how to do it right?
It is running absolutely horrible today. (COLD engine hot, , or both?)
It shakes, rattles and dies when idling in park. Gross misfiring , is FPR OK? does
You can even notice hesitations when driving if the RPMS are under 2k every now and then.
It will also stumble and get confused for the 1st 5 seconds or so of cold start.
Starting it hot requires manual throttle today, unless you try 2 or 3 times. (so does idle race started cold as it must)
On top of that, I am now getting a p0172 code, and the oxygen sensor monitor in still incomplete, even though it was complete all week.
The O2 is slammed to 0v or 1v, all the time, tell me how the monitor complete can even run. at all, it cant.
It's a brand new NTK sensor (~300miles on it) 02 front , you forgot to say front, and no O2 works if exhuast leaks near it, none do is #4 exhaust runner, cracked?
FOR GET COMPLETES those are only for the smog man, fix 172s. (172 only means gross rich and misfiring always does that, rich, misfiring is unburned fuel)
do know that many tests (monitors) can not run if there are other hard failures, like this car.
for example the CAT test can NOT run unless all others are ok. for sure no 02 failures.
also , know it can take 3 trips (hot and long) for the P03xx misfire codes to set, (fail)
And want to here something else weird? You know the chime that happens when the door is open and the key in the ignition? I would never hear that sound, but since this problem is back the chime beeps now??? I can't be related can it? I wouldn't think so.
I dont know chime rules, and is not related, sure if the CEL glows, and is fashing , (means gross misfire) it may chime, but I dont care, only my eyes, ears
felt engine shaking and ecu finding DTCs matters. not chime. Ive never owned the 98 so maybe they added a chime line to ECU, IDK.
I have created a google drive folder with the following:
- some videos of symptoms, stall test (seems weak)
- spreadsheets of sensor data
- graphs of sensor data.
***I'm having trouble playing the videos in Firefox. IE, Edge and Chrome all play them fine.*** NO 2 browsers are same. for this, you must configure them all.
videos are the most complex topic off all, there are vast numbers of video formats, try VLC for best play and needs JAVAscript active to run them. n browers.
The 5 mile try data/sheet was a cold start and a drive to work, about 5 miles.
Thanks again fixkick for all the time and effort you put into helping me try and figure out the issue. I do not want to give up on this poor little tracker, it's just very sick and needs our help.
(unquote)
facts:?correct me.
Misfires parked.
hot or cold engine misfires, badly, and is real, the front 02 sensor will be black and stuck at 0v or 1v, (no not bad 02, bad fueling)
FPR is 19 years old,?
EGR closed, do the EGR defeat test clean the main EGR at rear of #4 intake runner?
exhaust port 4 cracked, ? shield off SCOTTY
fuel pressure at spec, idling hot, and misfiring now?
Maf VOLTAGE CORRECT WITH A VOLTMETER?
first to to my egr choice page
http://www.fixkick.com/EGR-choice.html#index
then (USA cars) pick your year.
98 takes you here
http://www.fixkick.com/EGR-Gen3.html
on that page, is photo map of your system. (P means Pressure to Japanese I guess, or Vacuum side or Plenum side, ) 2 ways to remember it.
http://www.fixkick.com/sensors/EGR/96-EGR-map.jpg
open hood, look up, see that EPA mandated, Smog vacuum map, bingo EGR.
TO PROVE THE EGR IS NOT CAUSING ISSUES,. WE DEFEAT IT( OPEN HOOD SEE THE VACUUM MAP THERE, the map can be different, USA fed, USA CALIF or canada
the car is tuned up,
no ideal how long parked, yet.
engine is ok, great compression.
me, not sure what stumble means. (elborate that, misfire, ? felt, seen, heard, bogging, slight throttle hesitations> ) i cant drive it to witness all that... so....
1: cold engine, with index finger, exercise the diaphragm. it moves 1/4" (6mm) in and out and closes, if it does that good, as seen on my EGR pages.
if it is struck closed, it's not cause of STUMBLE.its dead now.
if its stuck open it is the cause. (the EGR is turn off parked, at idle. 3 ways) (vsv, ported vacuum and ecu commanded and zero speed now, = off)
2: the hose at the main EGR nipple can be unplugged, at the EGR main side, do not mess with those hoses on VSV on back of intake manifold. or get them mixed up, this is in USA called EGR2 system has 2 valves now. (95 back 1 valve)
VSV ,means there are 2 vacuum solenoid valves.
The 2 valves allow the 2 EGR tests to happen and tell owners whats failing, with 2 , P0400 codes, A and code B. its feature that is nice. here
Id bet the EGR is not the cause, but only tests prove this, we take it off, clean it (MAIN) make sure its clean at the seat then make it closed
it must close on its own, it has a spring inside and must close, if yes, put it back and remove hose, and put a golf tee in that vacuum sucking hose.
do not let any hose suck air, running, or engine can go lean and stumble.
ok now the EGR is defeated, 100% for testing, so stumbles now, sure it does.,all we did above is prove the engine stumbles with NO EGR. active.
end EGR (we can make it actually work later after fixing STUMBLE true cause (lots there are) stumble is reall MISFIRE>
misfire has over 50 cauese but is about 10 tests to find it, after a full tuneup.
working and slaving to find misfire with bad spark , and no tunes done, say in a decade is well ,just punishment to owners.
(quote and commented)
I have some updates, but I'm afraid they are are not really good. I plugged the ERG in just about every way possible and it still has the stumble. You may think I am stunned, but I'm still not 100% sure which hose to plug and where, so I tried them all.
Maybe someone can dig up a picture of the proper way to plug it. ( the map is under the hood see under hood EPA sticker , BINGO USA laws put that there.)see my links above, to my egr pages.
Today I plugged the hose at where I marked 2 on the EGR picture posted above (no change). I then plugged the "bark tube" or the one that puffs exhaust out (no change). Next I tried to plug both the "p" and "q" hose (no change). (the p and q , P goes to plemum side vac side, Q goes to main side (main EGR) as seen on my 96-98 egr page.
MY ERG PAGE SHOWS how to do it right?
It is running absolutely horrible today. (COLD engine hot, , or both?)
It shakes, rattles and dies when idling in park. Gross misfiring , is FPR OK? does
You can even notice hesitations when driving if the RPMS are under 2k every now and then.
It will also stumble and get confused for the 1st 5 seconds or so of cold start.
Starting it hot requires manual throttle today, unless you try 2 or 3 times. (so does idle race started cold as it must)
On top of that, I am now getting a p0172 code, and the oxygen sensor monitor in still incomplete, even though it was complete all week.
The O2 is slammed to 0v or 1v, all the time, tell me how the monitor complete can even run. at all, it cant.
It's a brand new NTK sensor (~300miles on it) 02 front , you forgot to say front, and no O2 works if exhuast leaks near it, none do is #4 exhaust runner, cracked?
FOR GET COMPLETES those are only for the smog man, fix 172s. (172 only means gross rich and misfiring always does that, rich, misfiring is unburned fuel)
do know that many tests (monitors) can not run if there are other hard failures, like this car.
for example the CAT test can NOT run unless all others are ok. for sure no 02 failures.
also , know it can take 3 trips (hot and long) for the P03xx misfire codes to set, (fail)
And want to here something else weird? You know the chime that happens when the door is open and the key in the ignition? I would never hear that sound, but since this problem is back the chime beeps now??? I can't be related can it? I wouldn't think so.
I dont know chime rules, and is not related, sure if the CEL glows, and is fashing , (means gross misfire) it may chime, but I dont care, only my eyes, ears
felt engine shaking and ecu finding DTCs matters. not chime. Ive never owned the 98 so maybe they added a chime line to ECU, IDK.
I have created a google drive folder with the following:
- some videos of symptoms, stall test (seems weak)
- spreadsheets of sensor data
- graphs of sensor data.
***I'm having trouble playing the videos in Firefox. IE, Edge and Chrome all play them fine.*** NO 2 browsers are same. for this, you must configure them all.
videos are the most complex topic off all, there are vast numbers of video formats, try VLC for best play and needs JAVAscript active to run them. n browers.
The 5 mile try data/sheet was a cold start and a drive to work, about 5 miles.
Thanks again fixkick for all the time and effort you put into helping me try and figure out the issue. I do not want to give up on this poor little tracker, it's just very sick and needs our help.
(unquote)
facts:?correct me.
Misfires parked.
hot or cold engine misfires, badly, and is real, the front 02 sensor will be black and stuck at 0v or 1v, (no not bad 02, bad fueling)
FPR is 19 years old,?
EGR closed, do the EGR defeat test clean the main EGR at rear of #4 intake runner?
exhaust port 4 cracked, ? shield off SCOTTY
fuel pressure at spec, idling hot, and misfiring now?
Maf VOLTAGE CORRECT WITH A VOLTMETER?
http://www.fixkick.com