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Tracker1989-2004
This compact SUV proved itself to be a fine ecnomical vehicle, good for making its way along any type of surface. Platform: CAMI (Suzuki)
I have a 1999 Chevrolet Tracker, 2.0 liter, 2 door, 4WD. The Check Engine light is on and according to Autozone, the code triggered is the Oxygen Sensor bank 1 sensor 1. I have replaced the sensor and had the code cleared. The Check Engine light is back on! Their scanner is only showing the Oxygen Sensor, so where do I go from here?
It does have a complete exhaust, I don't hear any leaks and I imagine if something was clogged, I wouldn't get far lol. It does seem to run fine. No smoke.
Last edited by AciDDreamZ; Jun 3, 2023 at 2:23 PM.
I have a 2001 2.5 liter. My engine has five possible codes for Bank 1 Sensor 1:
P0131 02 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0132 02 Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
In this simplified B1S1 diagram there are several places that could trigger an O2 sensor DTC not caused by a bad O2 sensor. Are you wanting to troubleshoot this yourself?
Normally I wouldn’t suggest trying some snake oil BUT…
I was having similar issues with my 1999 2-dr. 1.6L Tracker. The O2 fault was coming on intermittently.
I tried a bottle of CataClean. I’ll be damned if it didn’t clear it up. Temporarily, I’m sure. It’s not cheap, $24.
But you could try this Band-Aid fix for now.
The code is P0455, large evap leak. Originally stated the O2 Sensor, then purge volve, then I stopped lol. I started to look closer at the engine bay for starters. Most all of the rubber lines in the engine bay look very dry and cracked, also some clamps missing. So who knows, time to start some testing here and there I suppose lol. I did replace the purge valve and fuel regulator, they appeared to be damaged and by damaged, I mean the regulator was bent to 45deg and half caved in lol and the fuel regulator looked like it had a good size crack in the body forming. Appreciate all the advice, very much!
If you wanna throw parts at it I'd start with a new gas cap. That's the most common source of an EVAP leak.On the other hand if you want to find the leak first you'll need a low-pressure smoke machine. Check out this video of EVAP leak on a Grand Vitara/Tracker.
1999 Chevrolet Tracker Oxygen Sensor?
