Help tune problem
Thread Starter
Teching In
Joined: Jan 2015
Posts: 48
Likes: 0
Help tune problem how do i reset back to custom tune after unhooking battery 1998 LS1. Replaced O2 sensor, unhooked battery. Was told car went into trip mode when sensor light came on. Sensor replaced.....battery hooked up. Car has noticeably lost power. feels like custom tune went bye-bye. I have been told it shouldn't have. But as all you know...we can tell when loss of hp is present. As you guys know 1998 LS1 needs to be tuned on laptop and is expensive. What is proper way to reset after replacing sensor back to custom tune? And side note....had clutch replaced couple weeks ago, and he unhooked O2 sensors but not battery
Thanks a lot for any help
Thanks a lot for any help
On The Tree
Joined: Jun 2015
Posts: 182
Likes: 3
From: Portland OR
If you lost your tune from disconnecting the battery you have bigger problems than a O2 sensor.
Check for codes and scan data stream to verify sanity of sensors. The PCM will not set codes for sensor readings that are within the realm of normal. A temp sensor that reads 0° at 180° will not set a code, a MAP reading that shows atomspheric pressure with the motor running will not set a code. Etc.
Check for codes and scan data stream to verify sanity of sensors. The PCM will not set codes for sensor readings that are within the realm of normal. A temp sensor that reads 0° at 180° will not set a code, a MAP reading that shows atomspheric pressure with the motor running will not set a code. Etc.
Thread Starter
Teching In
Joined: Jan 2015
Posts: 48
Likes: 0
Tune problems If you lost your tune from disconnecting the battery you have bigger problems than a O2 sensor.
Check for codes and scan data stream to verify sanity of sensors. The PCM will not set codes for sensor readings that are within the realm of normal. A temp sensor that reads 0° at 180° will not set a code, a MAP reading that shows atomspheric pressure with the motor running will not set a code. Etc.
Check for codes and scan data stream to verify sanity of sensors. The PCM will not set codes for sensor readings that are within the realm of normal. A temp sensor that reads 0° at 180° will not set a code, a MAP reading that shows atomspheric pressure with the motor running will not set a code. Etc.
Thanks again
