Speed sensor cause this?

[LantanaTX]

Originally Posted by edram454

I have a 1990 and I recently replaced the VSS (vehicle speed sensor.). That sensor can cause lots of problems. when mine went out, my car idled differently. It would not idle down under 1000 rpm at a stop light, the secondaries would not come on, I was throwing suspension codes and check engine lights, car ran a little rough and definitely losing power. Fortunately for you, the 1991 speed sensors are cheap and plentiful. It was easy to replace so it is worth the effort. My car idles at a 1000 rpm and when it comes to a complete stop will go under 1000 rpm to 800 or 900 rpm.

I didnt realize who much power I lost until I replaced it and now this car is a rocket again. My car has mods and it is a stock cube car but runs very strong 405 rwhp. The speed sensor for a 1990 if you can get it, is around 300.00. Your 1991 should be around 50 bucks. Good luck.

ed ramos #3028

Thank you, Did your speedometer work normally? It was mentioned above that if the speedo works then this sensor is fine. My speedo works fine, but your other issues it caused seem to be the same as me.