lmdew

Please let us know if it fixes the P1133 ECU code.

They sell special sockets for the Sensor Removal, but I've always used a 7/8 tubing wrench. Sears has them.

I'd check for power at the fan. If its there, the fan is bad.

Since the O2 circuit to the ECU is just getting input voltage from the sensor, wouldn't you think if the sensor was disconnected the wiring should be reading 0 volts? How do you check the internal circuits? Thanks for the info.

If they are good, those are reasonable prices. Used Trans are $750 or so from the yards, same for engines. You may want to drop a 2.2 engine in or watch for a wreck that has a good engine and trans. You may be able to pick the complete car up for less than a $1000.00 In the end, look at the life you will get out of the car.

HELP! Update: 1) I tried a used ECU and had the same results. 3.8 volts as seen by the OBDII readout. 2) I did resistance checks on the O2 sensor wires: - jumpped in the engine compartment (sensor-ground wire) 0.00 ohms at the ECU connector. - Individual wires to ground, OL (open line) With the ECU Connector plugged in and the key on: - Sensor wires 3.8 volts at the ECU and the engine bay connector (O2 sensor disconnected) - Heater wires 12.8 volts = battery voltage As I see it, the 3.8 volts is coming from the ECU. So either I have two bad ECU's or I'm over looking something. If you have the factory manuals with good wire diagrams on the ECU/O2 circuit please send them my way. Anyone with a 99 Impreza in Colorado Springs, I could hook my OBDII reader up to and check your O2 sensor voltage? Thanks, Larry

If the field plug is the same, it will work. I've done lots of 2.5 to 2.2 swaps and they all work as long as the plug is the same.

You could check another Subi and see where the piston is or put some sort of a spacer in between the clutch fork and the piston rod. That would force it in and you could see if you are getting full throw of the fork. Sounds like you may be in for a new clutch.

If you need a dash or other parts, call me. I'm in the springs, Larry 268-9750.

Watch Ebay or the message board. The come up often.

I just picked up a 99 same config as the one your looking at 130K for 3500. It needed struts and some other stuff. Check the craigslist in SFO or LAX.

Sounds like one of the bolts holding the assy. in may be gone. Yes, to get it out you will have to pull it. I'd take a second look and see if you can't find what is wrong before you pull it. You can always look at the other side and compare the two. What year and model?

If you have had the P1133 error code on your newer model Impreza please post the fix. My 99 is seeing 3.8 volts with the O2 sensor wires disconnected. Another member has indicated the same. I have a ECU on the way. I thought this post may save someone the cost of the O2 sensor.

I have a good one and tail pipe. $20 to pack for shipping and you pay the shipping from 80916. Good CO parts with surface rust only. Lmdew@hotmail.com

I have a good set for the 93 Impreza. I think they are the same, but you'd have to try them to make sure. Legacy to Impreza. Lmdew@hotmail.com Colorado Springs.

I turn the cover plate over and bolt it in with 1 bolt. It forms a holder for the drive shaft. You can then drive the car on or off the dolly for limited distances. Take some liquid wrench for the cover bolts!

I'd pulled the wires out of the ECU plug and the ECU still sees 3.8 volts. There should be 0 volts there with no input, I would think. The ECU is all solid state and I did not see any burned/shorted circuits, but I'm not a micro-miniture repair guy either. Thanks for the thoughts.

I believe I have confirmed its the ECU. I pulled connector B136 pins 7 (white +) and 20 (black -) which are the O2 sensor input wires. The ECU still sees 3.8 volts and reading the O2 sensor direct its 0.001 to 0.8 volts which is right in the range is should be. How long is the Federal Specifaction Emissions Performance Warranty period? I thought it was 8 years, but have not been able to confirm it. I'll check with the Dealer to see if the ECU has any recalls. Looks like its a new ECU.

I'd try over at http://www.nasioc.com in the performance form.

I disconnected the O2 sensor in the engine bay. It worked fine if read directly. At the same time the ECU still had 3.8 volts. I pulled the ECU cover and looked at the circuits and no defects noted. I'm going to try another ECU or pull the O2 sensor wires at the ECU plugs and then see if the ECU still has 3.8 volts. That will confirm its internal.

Without it you will not have ABS and the light will be on!

Could be if the new axle did not have the ABS sensor ring or the wires got damaged.

Send me a PM or call 719-200-2973. My son has two spare starters in Fort Collins for a Auto Trans. He'd be happy to put one in for you. Later, Larry

Yep, that was my plan. I'm going to disconnect the sensor from the harness and see what the ECU has vs the output of the sensor. I just need the time to get there. Thanks for the info! I'll update when I get it checked.

I probe the splices of the new sensor with my Fluke 83. I can also see the voltage with my computer through the OBDII connector. Yes the voltage is way high. When I checked the old sensor on the bench with the torch it read .5 volts.