Nashracing24

ok, my egr engine code 12, still comes on after i replaced the unit with another one and cleaned out EVERYTHING spot shiny inside out, intake man and all, the dang lite still comes on after i go about 200 yards. PLEASE tell me WHY my light wont go away.
JDM type 1
Type 2 maniold.
Thanks

 

Quaraxkad

Did you clear the code after cleaning the EGR? Did you replace the valve with a new one or used? Did you test it with a vacuum gauge?

__________________

1994 Acura Legend LS



Done: WeaponR Secret Weapon with K&N inverted cone filter, JDM headlights, inverted dash warning lights, mesh grille, RaceConcepts rotors, ceramic pads, Bondo'd rust(!), Pioneer DEH5800MP, JL Audio e1800D, 10" TC Sounds TC-1000 in custom birch box, MLS-copy front strut bar, Stromung cat-back.
In Progress: OEM headgaskets.
Soon: Looking for a mint GS to replace my LS for future plans.

1992 Oldsmobile Cutlass Supreme S coupe

Nashracing24

goes away everytime i turn off the car. and no vacuum test, and used

Telion

You still need to reset the code to clear it out of the ECU, and double check your vacuum lines not sure if I saw where you said you did this, you may also wanna check hoses 3, 5, and 21,sometimes those are easy to mix up with the EGR hose at the MAP box.

__________________

\/Provider of The Telion Chip click here\/
http://telionsite.com or search Telion Chip
3.5, TII cams,pnp mani & springs,Telion Chip,HID's,H&R's/Koni's,Addco Sway bars,TII calipers,RH C2's,R.J. shifter,DV8 EGR plate,CAI,OBX headers,2.5" exhaust,hi-flow cat,K2 muffler,Stage III clutch,S&D rotors, KVR pads, blackend damper, a CF hood, AFC NEO, 3.5 Aluminum pulley, & Web cams. C&R Racing radiator and more to come.

Quaraxkad

Turning off the car doesn't clear the ECU memory. Remove the ACG fuse from the fuse box under the dash for 15-20 seconds. If the code comes back, you still have a problem.

__________________

1994 Acura Legend LS



Done: WeaponR Secret Weapon with K&N inverted cone filter, JDM headlights, inverted dash warning lights, mesh grille, RaceConcepts rotors, ceramic pads, Bondo'd rust(!), Pioneer DEH5800MP, JL Audio e1800D, 10" TC Sounds TC-1000 in custom birch box, MLS-copy front strut bar, Stromung cat-back.
In Progress: OEM headgaskets.
Soon: Looking for a mint GS to replace my LS for future plans.

1992 Oldsmobile Cutlass Supreme S coupe

blkonblkcpe

OR disconnect battery!

__________________

DEMOCRACY IS TWO WOLVES AND A LAMB VOTING ON WHAT TO HAVE FOR LUNCH. LIBERTY IS A WELL ARMED LAMB CONTESTING THE VOTE.

Quaraxkad

But then you loose your radio presets.

__________________

1994 Acura Legend LS



Done: WeaponR Secret Weapon with K&N inverted cone filter, JDM headlights, inverted dash warning lights, mesh grille, RaceConcepts rotors, ceramic pads, Bondo'd rust(!), Pioneer DEH5800MP, JL Audio e1800D, 10" TC Sounds TC-1000 in custom birch box, MLS-copy front strut bar, Stromung cat-back.
In Progress: OEM headgaskets.
Soon: Looking for a mint GS to replace my LS for future plans.

1992 Oldsmobile Cutlass Supreme S coupe

blkonblkcpe

Yeah, but it's still easier than crawling under the dash, at least, for my old ass it is!

__________________

DEMOCRACY IS TWO WOLVES AND A LAMB VOTING ON WHAT TO HAVE FOR LUNCH. LIBERTY IS A WELL ARMED LAMB CONTESTING THE VOTE.

Nashracing24

alright, i took my im off and cleaned it to shiny again. no more crud at all. it was disgusting. i put some gauranteed to pass emissions in and rode around for a bit then went back, i passed everything with flying colors EXCEPT nox emissions. i have a magnaflow catalytic converter on there. what else could this be please help, im tired of spending money on things i dont need.
please help, allowed 879 nox and had 1378 please whats the issue
and where is the thermo valve and hoses.
thanks
ill double check all vacuum lines again for cuts or tears along with making sure they are all rightly put on.
thanks

ari_one

My NOx wasn't quite over the limit here in AZ (my CO was over though) but here are my numbers and how they changed to after each step:

AZ allowed 2.50

1st test 2.30 --> cleaned EGR tube and valve, changed to new plugs
2nd test 1.42 --> changed O2 sensors
3rd test 0.64

__________________
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Controls for sale:
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DrDave

Code 12 is the EGR lift sensor. Could simply be a bad sensor.

Dave

Nashracing24

the egr lift sensor
Thanks

Quaraxkad

The lift sensor is connected to the valve, which is what you already replaced. Correct? You need to get a vacuum gauge and a vacuum pump to properly test the system.

__________________

1994 Acura Legend LS



Done: WeaponR Secret Weapon with K&N inverted cone filter, JDM headlights, inverted dash warning lights, mesh grille, RaceConcepts rotors, ceramic pads, Bondo'd rust(!), Pioneer DEH5800MP, JL Audio e1800D, 10" TC Sounds TC-1000 in custom birch box, MLS-copy front strut bar, Stromung cat-back.
In Progress: OEM headgaskets.
Soon: Looking for a mint GS to replace my LS for future plans.

1992 Oldsmobile Cutlass Supreme S coupe

Nashracing24

and yeah i do

Daniel_S

On Honda (UK) you may download the workshop manuals for free:
cars->Honda owner->Parts and servicing->workshop manual

The sensor for the AGR valve lift is sitting on top of the AGR valve. It is a small box made of thin, silver sheet metal. Possible reasons for wrong sensor signal:
-vacuum does not built up on the AGR. If the AGR valve is supplied with vacuum at mid-load, check the diaphragm in the AGR valve for leaks. If no vacuum is present, check the hoses and the modulation valve in the control box
-AGR valve is stuck, clean with oil and move it manually
-defective lift sensor or missing supply voltage.