bass boosted EJ
- Thread starter EJaudiophile
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EJaudiophile
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Well it looks like the idle issue has fixed itself I don't know how
Read below, quoted from OBD-Codes.com. Both codes have the O2 sensors in common. The related O2 info linking the issues is in BLUE and the O2 test is highlighted in GREEN. I edited the original descriptions to just get to the point.
P0135 = This code refers to the front oxygen sensor on Bank 1. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. If the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0135.
Symptoms: You will likely notice poor fuel economy.
Causes: A code P0135 may mean that one or more of the following has happened:
- O2 Heater element resistance is high, Internal short or open in the heater element.
- O2 heater circuit wiring high resistance, open or short to ground in the wiring harness
Possible Solutions:
- Repair short or open or high resistance in wiring harness or harness connectors
- Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
Read more at: http://www.obd-codes.com/p0135
P0420 = Catalyst System Efficiency Below Threshold (Bank 1)
What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code because it applies to all makes and models of vehicles (1996-newer). When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). Catalytic converters are not designed to wear out and need replacement. If they have failed, it is likely due to something else that caused it to fail.
Symptoms: Aside from the CEL, you will likely not notice any drivability problems unless the substance inside the catalytic converter is broken or failed, then it may be restricting the exhaust which will result in a feeling of reduced power output from the vehicle.
Causes: A code P0420 may mean that one or more of the following has happened:
- A damaged or failed oxygen sensor, possible wiring damaged or connected improperly.
- The oxygen sensors in front and behind the converter are reporting too similar of readings.
- The engine coolant temperature sensor is not working properly
- Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe
- Retarded spark timing
- Leaking fuel injector or high fuel pressure
- Cylinder misfire
- Oil contamination
Possible Solutions:
- Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.
- Use a scope to diagnose the oxygen sensor operation.**
- Inspect the downstream heated oxygen sensor (HO2S), replace if necessary
- Replace the catalytic converter.
- Overall probably the biggest mistake is to simply replace an oxygen sensor (H02S). It is important to do proper diagnosis so you're not wasting money replacing parts unnecessarily. There are many stories where folks replaced the cat with a cheaper aftermarket one only to have the code return shortly thereafter.
Read more at: http://www.obd-codes.com/p0420
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If its, in fact, a faulty O2 sensor or related wiring issue then it'll randomly make good contact and work well. If the O2 sensors both look old and original, I would'nt risk it and I'd replace both. Perhaps give each a full visual inspection with them removed then make your decision.
EJaudiophile
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Picked up some oem hx wheels today I'll post pics when I get off work
EJaudiophile
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New wheels
EJaudiophile
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Cause I'm too broke for new suspension but I don't think I will have the car for much longer I think I killed my car today it started running really rough when the gas pedal stopped working I had to stomp on it to get it to Rev
EJaudiophile
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I'm going to. I wanna try to fix the car first though. I'm pretty sure it's a blown head gasket but I'm not positive so I'm gonna have my mechanic friend look it over before I start thinking of another car
what makes you think its a blown headgasket?
EJaudiophile
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It seemed like I was loosing compression but that wasn't the problem I guess something fried in my distributer andoes the car was only running on 2 cylinders I'm not exactly sure. I took it to a mechanic
EJaudiophile
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finally new wheel bearings