Nashracing24

it did it when i first started the car, til present. a few months, can i take that box off the top and clean it?? the valve lift or w/e??
Thanks

 

Quaraxkad

You said that you failed your emissions test, but have you cleared the ECU code yet to see if it comes back? You may have already fixed the EGR problem and need to look somewhere else.

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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

what copuld be the problem.and yea i failed emissions

Quaraxkad

Get a vacuum gauge/hand pump and do the tests I posted. You could replace the valve and solenoid 100 times each with other used parts and never fix the problem.

EDIT: You can rent a vacuum pump for free from Autozone.

__________________

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

i work at autozone and i didnt know that. i knew we rented tools but dang free?
idk lol
ill ask tomorrow
Thanks man.
ill try those tests when i can and let you know
Thanks

Smalltalk

You said you cleaned the Intake Manifold. Did you clean the EGR Pipe that runs from the EGR Valve to the back of the Intake Manifold, as described in this thread:

egr valve

Nashracing24

I cleaned it the best i could, how do i make sure its really really clean inside of the pipe, i cant see inside of it???
Thanks

Nashracing24

I heard that the nox emissions have to do with the temp inside the chambers.would water or anitfreeze be cooler?? and i heard if i retard the timing or turn it down really low ill pass nox w/ flying colors.
Help
is this true??
Thanks

sap

Yes, NOx production is stunted when you're burning cool, it's the entire point of EGR. You're asking for trouble if you try using water instead of antifreeze.

DrDave

How about that lift sensor?

Dave

Nashracing24

i did the egr vacuum test and the car did stall. so it said it is an electrical problem with the egr not vacuum now right
my car actually cut off lol.my egr valve is good.its an electrical problem right??
Thanks

Daniel_S

Check voltage between + and GND terminal oft lift sensor. Should be 5V. Check voltage between the out terminal and GND and apply variable vacuum to the AGR valve. The OUT voltage should change together with the vacuum in the range 1.2V...4V.

If the lift sensor does not supply correct voltage to the ECU, the AGR control loop will not work correctly.

Smalltalk

Did you follow the diagnostic procedure in the service manual? I saw someone already provided a similar description - so maybe you already have.
The manual is online (per sticky):

Acura Legend Online Service Manual Thread (G1/G2/G2-TCS)

In my copy, it's on page 11-132.

Nashracing24

alright i will see bout it thanks

92drls

Reading through this post makes me so thankful to have such a knowledgable crowd watching each others back!! You guys rock!!

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