i would make sure they are bad before throwing more parts at it. a scan tool will verify the speed sensor.

the tach may be a connection either at the connector behind the dash or at the pcm. you need to verify part failures before throwing parts at it.

Roy

Answered by ASEMaster6371 (expert)
24,973 answers provided

great thank you, i have a scan tool for my laptop that plugs into the obd port, however it is a minidisk? software question i guess are you familiar with minidisk for a laptop. i think its obsolete data material

Response from slackey11
1 question asked

there are comppanies that give you software for your laptop. i have bowser electronics that reads codes and info.

look on the internet.

Roy

Answered by ASEMaster6371 (expert)
24,973 answers provided