ridkar

98 v6. Throwing a vss code that is causing the od off light to flash. Sensor ohms out ok. Speedo works. Help anyone!

petrock

What is the exact code? How did you test the sensor? Where did you get the spec for the sensor to know its OK?

ridkar

I got it from a chiltons manual. It said that 190-250 ohms is ok. Mine is at 235. The codes are p1900 and p0720. The speedo works great, but I did swap it to see if that's the problem. Same codes. The gear is bad on odometer though, this will not have an effect will it? I am down to checking continuity from vss to PCM.

petrock

p1900 is "Output Shaft Speed sensor circuit intermittent failure"
p0720 "OSS Insufficient input from OSS sensor"

Output Shaft Speed Sensor (OSS) is a different sensor then the VSS. Your looking at the wrong part.

ridkar

Where is OSS. The only one I see is the two wire sensor with the gear inside, located right beside the o2 sensor on drivers side of tranny. Is the OSS inside?

ridkar

Did some research. 97 down use vss and 98 up is OSS, correct? If I have a vss installed in the tranny instead of an oss will the speedo be right? (the speedo is working correctly) the tranny has been rebuilt. This is a project car I bought for my daughter so I'm not sure which I have installed.