SupraFiend

Hey I've got a del sol I'm troubleshooting a couple problems on. The car is a bit of a mess (97 body, 95 Si auto ecu, early EG civic d15b7 EFI and wiring with VTec added in, and a 96 d16y8 engine and auto tranny), but ignore that. I have 2 questions....

1. I'm getting code 2, which is listed in the ECU stickied thread as a O2B, a problem with the 2nd o2 sensor. From what I can tell 95s didn't have 2nd o2 sensors, the 92 EG civic FSRM I downloaded certainly doesn't show one. Yet this code exists in the ECU thread under the OBD1 error codes. Did 95 Sis have them for some reason? Not a big deal for me as my car is 97 and has the 2nd o2 sensor, I just need to know the pins in the p28 ecu to run the wires to (which are not shown in the ECU thread). I'm also getting a code 7, TPS but I think I know what that is (that or I'm getting code 27 which doesn't exist, but the gap between the two codes is really long).

2. I'm pretty sure I know the answer to this question but its worth a shot. The ECU thread talks about adding the wiring for the Knock sensor. Now obviously this is in relation to a B16 swap, but since I have a 96 d16y8, the knock sensor and all the wiring needed, if I hooked it up to the proper pins listed would this 95 Si ecu actually use it? I doubt it since they never came with them but you never know with Honda's platform sharing ways.

Thanks for any help in advance!


Modified by SupraFiend at 9:54 AM 4/20/2006

Bond

1) first of all i don't think your running a p28 at all or the whole thing has been converted to obd2. i think your running a obd2 ecu that isn't done properly. it's reading for a second o2 sensor which you no longer have pinned to the ecu so the computer isn't getting a signal and is saying it's missing or malfunctioned. prolly a tps code and you should back probe the tps and follow your manual on the volt specs to see if it's reading and double check the wiring to the tps.

SupraFiend

no its definitly a p28 a52. I think the TPS error is either due to the sticky throttle (the butterfly valve is closing so much that its sticking to the body) or the d16z6 uses a different TPS then the d15b7 (everything but the motor under the hood is d15b7). I'm going to figure that out today and pick up a new tb from a d16 if need be, but the code 2 has me puzzeled. No one has tried a knock sensor with an unmodded p28 ecu huh? It would be so hard to tell if it was working without some datalogging that its not really worth my time trying unless I know it will work.