Okay, so I've had this happen before. I've traced it to a lose sensor underneath my transmission that shorts when it gets really wet out. But this time, my Rpms drop insanely fast and my vacuum is around 25in hg instead of the normal 18. And between every shift or when I completely let off gas it back fires. Oil pressure is fine and no CEL has came on. Please help! Thanks
Speedometer not working
- Thread starter BenErnest
- Start date
Spamby
Meat Product Toy
Backfires and the such wouldn't relate to speedo.
Problems sometimes have a way of manifesting themselves suddenly or become apparent suddenly. Washing the car may have gotten something wet but I doubt it when it comes to making the car run funny in this way.
Your 50/50 bov is a leak right there. Your venting metered air into space and the engine thinks it's still in there. This will cause backfires and funny rpm.
Return to the factory bpv or, if your able to, close yours off to run full recirculated.
See if this changes anything.
Problems sometimes have a way of manifesting themselves suddenly or become apparent suddenly. Washing the car may have gotten something wet but I doubt it when it comes to making the car run funny in this way.
Your 50/50 bov is a leak right there. Your venting metered air into space and the engine thinks it's still in there. This will cause backfires and funny rpm.
Return to the factory bpv or, if your able to, close yours off to run full recirculated.
See if this changes anything.
Plugged in the Cobb ap, was running quite rich. Pulled that sensor and dried it trying to fix speedo. Let it sit for 7 hours or so. Speedometer works fine, fuel is back to normal, revs are normal, and no back firing. Vacuum test came back fine. Rather confused but it works, so I won't question it. Thanks for the advice again, Spamby. Always helping ��
Spamby
Meat Product Toy
One problem may not have been the cause of another. Still yet, it could be.
Electrical gremlins from one area can travel and sometimes cause oddities elsewhere. I don't know the schematics of this car or even pretend to know more than the basics of electrical but this case may be plausible.
Electrical gremlins from one area can travel and sometimes cause oddities elsewhere. I don't know the schematics of this car or even pretend to know more than the basics of electrical but this case may be plausible.
