Cylinder Balance Test

1. Perform Engine Running Self-Test. See appropriate article in the ENGINE PERFORMANCE Section. After the last repeated service code is received, wait 5-10 seconds. Lightly depress and release throttle (not wide-open throttle) within the last two minutes of the last repeated service code.
2. Cylinder balance test will be performed at the first test level. Test time is approximately three minutes.
3. After the last cylinder balance test pass code 90, re-enter test within two minutes by lightly depressing and releasing the throttle. The second level of the Cylinder balance test will now be performed.
4. After the last cylinder balance test pass code 90, re-enter test within two minutes by lightly depressing and releasing the throttle. Cylinder balance test will now be tested at the third test level.
5. Cylinder balance test may be repeated as many times as necessary by repeating step 3). All additional testing will be performed at the third test level.

the cylinder balance test is designed to aid in the detection of non-contributing or partially contributing cylinder.