My check engine light keeps coming on and its saying moniters aren't ready on my 2000 hyundai sonata

SOURCE: 2000 Hyundai Sonata jerking and causing poor performance

The turbine shaft speed sensor can cause this problem, It is also know as the transmission input shaft speed sensor. It will cause the transmission to **** and also stick in 3rd gear, which wound cause slow acceleration.

SOURCE: check engine light and how to diagnois and reset 1999 Hyundai Sonata

I had same problem and my repair shop just replaced a sensor in the tranny. Said it was a defect by Hyundai,but they won't recall it.

SOURCE: hyundai sonata 4 cyclinder touble code P0171

Sometimes the mass air flow sensor will become clogged with some miniscule particles of dust or whatever else. When you open up your hood somewhere near where the air filter box is, there will be a hose running from that to the engine, the mass air flow sensor should be somewhere in near there. They are easy to remove and should be held in place with a few screws. Make sure not to touch any of the electrical connectors on the inside or allow them to get dirty. I used mass air flow sensor cleaner from the local parts place but it is a bit pricey. There may be some alternative cleaners available that are not as expensive. Take the sensor to a relatively dust free area and spray it all over with the cleaner and allow to dry. At the same time under the hood where the sensor was spray that area as well. Once the sensor has dried out re-install it and you should notice an improvement. If the problem still persists you may need to change your spark plugs, or spark plug wires.

SOURCE: how do you reset the check engine light on hyundai sonata?

Just disconnect your battery for a couple of minutes.

PAUL MC G

• 1280 Answers
• Posted on Oct 04, 2009

SOURCE: I have a 2000 hyundai Sonata, 6 cylinder eng. My

The sensor is located on the left hand rear side of the block (near the bell housing). It is held in place by a 10mm bolt. It's to the right of the exhaust manifold (LH - radiator side) on the V6. Once you purchase the new sensor you'll be able to identify it on the engine. The connector to this sensor is located in the illustration.
A word to the wise... replace the O2 snsr as well.