Hi all,
Figured I'd post a new thread here to start a discussion about an issue I've been having that I haven't been able to figure out.
Basically, after about an hour of driving my '90 NSX, some combination of things will happen, sometimes all at once, sometimes just one:
-Speedometer starts jumping around, comes back, sometimes stops working completely
-EPS light comes on, usually codes 31 and 33, or just 33
-MIL comes on, code 17
Once the EPS code 33 comes on, the EPS works until I turn the car off and on again, then I need to reset the codes to get EPS back. The same problem happens almost right after starting up again if I don't wait for an hour or more, perhaps for the car to cool off again. This leads me to believe this is a heat related issue, it only ever happens if I've been driving the car for a long period of time and goes away overnight with a clock fuse reset.
When I had the auto trans, I replaced the NM speed sensor with a new aftermarket one since I thought that would fix both the speedo & EPS problems but still the same issues.
I swapped out the auto trans for a manual trans that came with a "new" (used) VSS1, and transferred over the NC speed sensor so my EPS would still work. I also converted to the S2000 gauge cluster in the meantime. Even with all that, still the exact same issues.
Is it safe to say the NC speed sensor I transferred over from the auto trans to the 5-spd is what's causing my problems? That's all I have left to replace unless there's an intermittent short or something in the wiring harness somewhere that repairs itself overnight.
Can I take off the new NM sensor from the auto trans I replaced and use it in place of the old NC sensor even if their part #'s are different? I don't know if they're interchangeable, it might just be the wire harness lengths are different (NM is longer than NC wiring), but the NC sensor is twice as expensive so if I can re-use the NM sensor that would be great. They should be the same design as far as I know.
Thanks in advance for any suggestions.
Figured I'd post a new thread here to start a discussion about an issue I've been having that I haven't been able to figure out.
Basically, after about an hour of driving my '90 NSX, some combination of things will happen, sometimes all at once, sometimes just one:
-Speedometer starts jumping around, comes back, sometimes stops working completely
-EPS light comes on, usually codes 31 and 33, or just 33
-MIL comes on, code 17
Once the EPS code 33 comes on, the EPS works until I turn the car off and on again, then I need to reset the codes to get EPS back. The same problem happens almost right after starting up again if I don't wait for an hour or more, perhaps for the car to cool off again. This leads me to believe this is a heat related issue, it only ever happens if I've been driving the car for a long period of time and goes away overnight with a clock fuse reset.
When I had the auto trans, I replaced the NM speed sensor with a new aftermarket one since I thought that would fix both the speedo & EPS problems but still the same issues.
I swapped out the auto trans for a manual trans that came with a "new" (used) VSS1, and transferred over the NC speed sensor so my EPS would still work. I also converted to the S2000 gauge cluster in the meantime. Even with all that, still the exact same issues.
Is it safe to say the NC speed sensor I transferred over from the auto trans to the 5-spd is what's causing my problems? That's all I have left to replace unless there's an intermittent short or something in the wiring harness somewhere that repairs itself overnight.
Can I take off the new NM sensor from the auto trans I replaced and use it in place of the old NC sensor even if their part #'s are different? I don't know if they're interchangeable, it might just be the wire harness lengths are different (NM is longer than NC wiring), but the NC sensor is twice as expensive so if I can re-use the NM sensor that would be great. They should be the same design as far as I know.
Thanks in advance for any suggestions.