emissions help - northern VA/DC area

[PsychDoc]

I just purchased a '91 with 53k and an after-market exhaust. It passed inspection no problem, but failed emissions. The mechanic said to bring it to Acura and have them figure out what the problem is.

Anyone have any advice?

Thanks!

 

[QWKSLVR]

For starters, look at the emissions report and make sure the mechanic entered the correct model year. I once failed an inspection b/c my '91 was entered as a '95 which has different emissions specs I believe. If that's not the reason, take it Charlie at the CarDoc on Lee Hwy. 703-560-8870, he by far one of the few individuals I would trust w/ mechanical work on my NSX and several other Prime members can attest to his ability, knowledge, professionalism & fairness. The last people I'd take it to is the dealership, but that's just me.

 

[ak]

List the result and we should be able to diagnose better. Also, list the modification your car has.

 

[PsychDoc]

Thanks for helping . I'm not really a knowledgeable car person, so your feedback is greatly appreciated.

Modifications:
Cantrell Concepts Billet / Carbon Fiber Oil Cap
Injen NSX Sport Air Intake System
H&R Sport Springs -1.5" Lowered
VIS Carbon Fiber Hood
Polished Aluminum Fuse Box cover
Nakamichi CD75 6 Disk in-dash CD Changer with remote
RM Stainless Steel Cat-Back Exhaust System
Cat eliminators
Momo Wheel Set with one spare front and one spare rear SIZE 17X8 and 18X9
Acura Chromed Badge on Rear Light Painted Center

Emissions were conducted at a Shell station in Lake Ridge, VA.
Results:

15 mph HC ppm Limit - 105 Result - 172
CO % Limit - 0.58 Result - 0.75
NO ppm Limit - 809 Result - 1351

25 mph HC ppm Limit - 101 Result - 188
CO % Limit - 0.56 Result - 0.74
NO ppm Limit - 732 Result - 1437

 

[VBNSX]

Thanks for helping . I'm not really a knowledgeable car person, so your feedback is greatly appreciated.

Modifications:
Cantrell Concepts Billet / Carbon Fiber Oil Cap
Injen NSX Sport Air Intake System
H&R Sport Springs -1.5" Lowered
VIS Carbon Fiber Hood
Polished Aluminum Fuse Box cover
Nakamichi CD75 6 Disk in-dash CD Changer with remote
RM Stainless Steel Cat-Back Exhaust System
Cat eliminators
Momo Wheel Set with one spare front and one spare rear SIZE 17X8 and 18X9
Acura Chromed Badge on Rear Light Painted Center

Emissions were conducted at a Shell station in Lake Ridge, VA.
Results:

15 mph HC ppm Limit - 105 Result - 172
CO % Limit - 0.58 Result - 0.75
NO ppm Limit - 809 Result - 1351

25 mph HC ppm Limit - 101 Result - 188
CO % Limit - 0.56 Result - 0.74

NO ppm Limit - 732 Result - 1437

That part that says 'Cat eliminators' if you don't have a catalytic converter, I guarantee you'll never pass. You may want to check into that.

-x-

 

[ak]

That part that says 'Cat eliminators' if you don't have a catalytic converter, I guarantee you'll never pass. You may want to check into that.

-x-

Most definitely!