Hi All,
I am the new proud owner of a '91 Comtech SC NSX. :biggrin: 42K miles. It also has the Comptech headers and exhaust. This is an early kit with the whipple SC.
Picked it up in Baltimore a couple of weeks ago and drove it the 7 hours home. (I live in Ohio). About an hour into the drive I got a CEL. The car had a hesitation on light throttle application that got worse until the CEL and them got really bad. Turning the car off and on made it better for a while. Codes read out as 1 and 2 which are O2 sensor problem. Nursed it back home (Well nursed it might not be entirely true. It ran best above 3500 RPM or with 3/4 and above throttle so I made darn good time home) When I got home I ordered a set of Denso O2 sensors and swapped them out. Also replaced the air filter. Reset the computer by pulling the clock fuse. It got better, but not fixed. Driven it about a week. Sometime it's OK with only a slight hesitation when gently accelerating, most time a little worse. Couple of times the CEL came on. Today it ran pretty badly and the CEL came on. I read the codes and... 1 and 2 again. It's not the wiring to the O2 sensor. Looked like new. Does anyone have advise on the next step?
Thanks!
Dan
I am the new proud owner of a '91 Comtech SC NSX. :biggrin: 42K miles. It also has the Comptech headers and exhaust. This is an early kit with the whipple SC.
Picked it up in Baltimore a couple of weeks ago and drove it the 7 hours home. (I live in Ohio). About an hour into the drive I got a CEL. The car had a hesitation on light throttle application that got worse until the CEL and them got really bad. Turning the car off and on made it better for a while. Codes read out as 1 and 2 which are O2 sensor problem. Nursed it back home (Well nursed it might not be entirely true. It ran best above 3500 RPM or with 3/4 and above throttle so I made darn good time home) When I got home I ordered a set of Denso O2 sensors and swapped them out. Also replaced the air filter. Reset the computer by pulling the clock fuse. It got better, but not fixed. Driven it about a week. Sometime it's OK with only a slight hesitation when gently accelerating, most time a little worse. Couple of times the CEL came on. Today it ran pretty badly and the CEL came on. I read the codes and... 1 and 2 again. It's not the wiring to the O2 sensor. Looked like new. Does anyone have advise on the next step?
Thanks!
Dan