poss speed senor problems

civicex442 · Post by **civicex442** » Tue Jun 17, 2008 3:39 am

here recently i have been having some troubles with my speedo. it jumps all over the place, says im goin 155 when i am doing 80. it pretty much has a mind of its own. i have made some changes recently like new si cluster and different chipped ecu, but everything worked just fine for atleast a few weeks and didnt have a problem until i removed the speed sensor in the transmission to install a new motor mount. it was giving me a rough time in the limited amount of space so i took it out hoping to not brake anything. well... my question is 1) is there any kind of calibration needed when removing and installing one of these 2) did i loose any parts such as a washer or anything that may cause the sensor not to ground or such 3) anyone know anyone that has one laying around that wants to let me try it out to see if it works for me because the dealership want 150ish for it at wholesale cost. f that. i have one off of a 92--95 civic dx, but it looks different. mine is off of a 97 gsr tranny. any info would be super helpful and i will continue to diagnose my problem further tomorrow by trying a stock ecu and possibly throwing in the old cluster just to make sure there is no confusion

civicex442 · Post by **civicex442** » Tue Jun 17, 2008 6:53 pm

wow... no input?

civicex442 · Post by **civicex442** » Wed Jun 18, 2008 9:46 pm

in case anyone wants to know... an obd1 speed sensor will not work on an obd2 harness...

Jawsiiv · Post by **Jawsiiv** » Sat Jun 21, 2008 7:16 am

Check your wiring first. I have a 93 dx, I replaced the cluster thinking that it was the cluster, and my speed was still off. I even replaced the VSS(which did go bad), and my speed was still off.

It was actually the wiring in the clip attached to the VSS. You may have pulled it loose. The harness has 3 little plugs. If you get anything in there, or it corrodes or gets loose, you might as well go get a used one from the salvage yard.

I would check that first before you go back and starting changing things.

civicex442 · Post by **civicex442** » Sat Jun 21, 2008 3:03 pm

wiring is good. tried two different clips and pig tails. im going to the slavage yard tomorrow to get a new vss.

mike93hatch · Post by **mike93hatch** » Sat Jun 21, 2008 3:09 pm

civicex442;120666 wrote:in case anyone wants to know... an obd1 speed sensor will not work on an obd2 harness...

all of my obd1 and obd2 speed sensor plugs are the same..