krkline2gdsm

P0500 Vehicle Speed Sensor A
P1298 Manufactuer Control Fuel Air metering
P0135 O2 Sensor heater circuit malfunction Bank 1 Sensor 1
P0141 O2 Sensor heater circuit malfunction Bank 1 Sensor 2
P1457 Manufacturer Control Aux. Emission
P0505 Idle control system malfunction

I cleared the codes. Immediatly, P1298, P0135 and P0141 came right back within 5 seconds of car running. Now correct me if I am wrong. The rear O2 sensor code is coming up because its not even hooked up. All this sensor does is tell the ECU if the cat is working properly or not and doesnt effect the fuel trims. I know I can get that code to go away by hooking it up. The Front O2 sensor is hooked up and this is a new code that popped up recently. I am going to replace this sensor. I think this bad sensor is throwing the "P1298 Manufactuer Control Fuel Air metering" code so I am hoping both codes go away when I replace the front sensor. One rainy day, the VSS sensor code came up and the MPH gauge went nuts. Said I was going 100mph when I was only going 5mph. I am assuming it got wet and made it flip out. I will try cleaning out the connections. The motor I have is a D16Y7 and I did a Y8 manifold/tb swap. Ever since I did this swap, the "P1457 Manufacturer Control Aux. Emission" code popped up and the idle sometimes bounces between 1000-2000rpm when warmed up. I am assuming that is what is tripping the "P0505 Idle control system malfunction". The Y8 TB could have a bad IACV but also at the same time, I could of messed something up during the swap and it has a small vacuum leak.

While I am new to this whole thing, any personal expierences with these motors is appreciated. Im sure I can figure out most issues but if they dont work out as planned, I would like to see what others have to say.

-Kenny

krkline2gdsm

I got it down to 1 code, which is the rear O2 sensor.

FOr future reference, fuse #15 under the dash was blown which causes air feul metering code and both O2 sensor codes to come up. I replaced and codes have yet to come back.