I cant find the egr valve on my 1996 volvo 850 non turbo. Cheked under the intake pipe. Any help thanks

 

These are from a 95. Correct me if I am wrong here but didnt they remove EGRs on later models? I mean if you buy a R manifold there is no EGR port on them.

 

If you have one it's on the bottom of the intake right next to the throttle body. If it isn't there you don't have one. They are available on '96 850 2.4L's but I think it's a matter of where it's being sold as to if the vehicle came equipped with one.

His pictures are better!

 

Check your VIN here to see if your car was equipted with EGR when it left the factory: https://customers.volvocars.com/owne...C/vin1996.html

 

Engine is 51 according to vin # cleaned every thing changed spark plugs wires distr cap cables and steel cant pas emission test

 

Any help is gonna be great Tx

 

The 96 850 non turbo engines didn't have an egr valve; they only had a valve that allowed an electric air pump to pump fresh air into the exhaust. I thought it was weird myself until I did some research... The fresh air helps the catalytic converter burn excess fuel and carbon more thoroughly. Finicky system sometimes but great when it works!

 

It would help us help you, if you told us what the problem is??? Why are you failing the test? Do you have a code? Do they hate Volvo's? What's the problem?

I'm so glad that we don't have inspections, let alone emission inspections.

 

Emissions test def. suck.. My car had failed the emissions in VA as indicated on my Carfax with the previous owner. It needs new O2 sensors and shouldn't have passed the Maryland emissions, but luckily did! Guess the inspector was a VO fan.

 

The other thing that would be helpful to know is what part of the test you failed.
Nitrogen oxide (NOx)
Hydrocarbon (HC)
Carbon monoxide (CO)

“Curb Idle” test. The idle portion of the test measuring HC and CO

I can't find the values so if you have the the upper limits allowed that would be helpful along with what your vehicle actually was pumping out.

 

it passing every thing except the NO ppm that has a limit 435 mine is 632. Here you have to do a test every 2 years to get your pate stiker . Canada

 

yas its not pasing the Nox

 

I thinck to change the catalytic convertor

 

A lean engine operating condition produces more NOx than usual, and the lean exhaust chemically interferes with the converter's ability to clean NOx. Excess oxygen is good for cleaning HC and CO, but bad for NOx.
Misfire condition
Failed or failing oxygen sensor
Coolant sensor reporting higher temp than actual
Leak in exhaust tubing upstream of converter
Excessive carbon deposits in combustion chamber (Might try some seafoam)
Blocked coolant passage
Overly lean air-fuel mixture
Damaged cold air duct
Poor fuel quality (try a can of octane boost)
Failed or malfunctioning catalytic converter
Corroded or damaged engine sensor electrical connections
After those simple things, you may be looking at needing a new catalyst.
No check engine light?

 

Time for denatured alcohol.

 

I will start tomorrow to check all this points. Tx kiss4afrog

 

for the alcohol I put the best gaz before the test end load a litter of 99% isopropanol alcohol still noting

 

Run the test with two gallons of gas and one gallon of denatured Alc. I have a Chevy truck that has passed three times with this combination. After the test, drive it out then fill up the tank full.