bdodd444

I took my 87 944 in for Virginia Emissions testing and it failed the test at 15mph. It passed the idle and 25 mph. I got the car from my mom, who lives in an area that does not require emissions testing. I was running regular 87 octane, and my mom suggested I run that all out and fill up with a good quality high octane. She said that during her time with the car (18 years), it sometimes ran rough in the summer and high octane fixed it. Any ideas out there? Thanks for any replies or advice.

Brian

xsboost90

put some 91-at least- in there and get it good and warmed up- 30minute drive- before going to get the car tested, to warm up the cat. converter.

schwank

Give her a treat of a tank of premium on top of a bottle of techron concentrate. Drive it like you stole it for that one tank. Change the oil, refill with premium, and then do exactly what Dan said, get it nice and warm first, and you'll be in good shape.

It's all about the Italian tune up

cjeckert

what they said and its about findin the right person to do the test, what part of VA are you in? the oakton sunoco the inspection guy used to own 944s and knows a few tricks in getting them to pass. Also what gear did they run the test in i've heard techs trying to run the test in 1st when it should 2nd.

Bri Bro

Replace the O2 sensor and take the car to a shop to have the cat checked. Do a tune up and run some Lucas fuel cleaner to clean up the injectors. Then, take it in and see what happens.

greenshoes3

one of my friends said he had to buy some special stuff at an auto store that you put into your gas. made his 83 pass with flying colors, cant remember what its called htough

bdodd444

Hey Guys,

Thanks for the great response, I'm going to try high octane gas, techron concentrate and the Sunoco in Oakton!!

Brian

J Silverman

The computer that does the test requires the car to be at a certain RPM. A buddy of mine is a state inspector and let me play around with the emissions tester while he was doing my 924. If you go outside the RPM window you have to restart the test. IIRC he did mine in 1st for the 15 and 2nd for 25. Id send you to him but he can only help if you fail the visual test.

What part of the 15mph test did you fail?

schwank

Make sure you change the oil after running any sort of detergent additive through your system. Think of it this way - what you are trying to break loose are any deposits that have stuck to the walls of your fuel system, injectors, and valves. When this buildup breaks loose, some may burn in the combustion chamber, but the rest is whisked away by your oil.

Not something you want to leave in there... so after you run her hard for that tank, make sure to replace that dirty oil with some new juice.

Supachink

i just failed mine the other day, my car is an 84 and i failed on the 25 mph test, i think the NO% limit was 1400 and i came up as 1625, also left a big puddle of oil on the ground...

dnwong

Is this the Sunoco in Oakton. I need an emissions test on my car also. Since its new to VA, I figure I got to a station that knows 944. Any particular person to see?

Sunoco Ultra Service CenterSM
2961 HUNTER MILL ROAD
OAKTON,VA 22124

Telephone: (703) 938-7732
Services: Car Wash

dnwong

Mine failed the first time at a shell station. Then

Called the guy in the Oakton Sunoco, he sounded pretty lame and told me to take it to the dealer.

So, I took it to a Fairfax Service Center in Merrifield. They did the test again, this time running the engine for a while and passed.