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 Speed Not Accurate And Engine Check Light, pops up when i go above 120KPH
 
ahsonpasha
post Jun 19 2008, 02:38 PM
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Hi ppl

i have discovered 2 problems in addition to the previous ones....

i measured the speedo with my GPS and it is 5 KPH faster than normal speed on low speed and gets up to 10 KPH faster on high speed.

also when i go at high speed about 100KPH above the check engine warning light pops at the dash...


any help much appriciated.

m3
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EMC 3000gt
post Jun 19 2008, 03:09 PM
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The speedos in the 1st generation are total crap because they are gear driven so at higher speeds they become completely useless.

What size wheels and tires do you have on the car? Anything other then the stock sizes will throw the accuracy too.
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ahsonpasha
post Jun 19 2008, 04:51 PM
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I have 17s stock wheels...225s

is there a way to adjust it with out fiddling around with the speedo needle
(like from the speed sensor or something like that or the ecu)

what about the check engine light at above 100 KPH???

cheers
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EMC 3000gt
post Jun 19 2008, 05:13 PM
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Its gear driven. I saw a write up on them I'll try and dig it up.

I have no idea about your CEL above 100kph
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ahsonpasha
post Jun 19 2008, 05:30 PM
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I have been trying to search for the speedo adjuster cant seem to locate anything in the manual either......

Thinking of taking it to mitsubishi and getting it checked out.....

but at the same time waiting for that Hand held halo software to be delivered (thanks for giving me the info) so i can have a look at it myself before i take it in...

but just cant hold my horses :)

anyway will update u as soon as i get something on either....

m3
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EMC 3000gt
post Jun 19 2008, 06:02 PM
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There is no adjuster

The gears just get worn out.
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ahsonpasha
post Jun 19 2008, 06:05 PM
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hmmm..... strange......
so if i replace the gears it should be ok.....
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EMC 3000gt
post Jun 20 2008, 12:50 PM
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Should be I'm not quite sure.
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ahsonpasha
post Jun 26 2008, 03:36 PM
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Hi

do you know where the speed sensor is located in a 1992

Thanks
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EMC 3000gt
post Jun 27 2008, 10:05 AM
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Your best bet is to download the manual and go from there.
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ahsonpasha
post Jun 27 2008, 12:31 PM
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I am planning to do that...

have ordered the HHH software and cable.... they have to send me the code for the software waiting for that.

then going to check the problems from the computer.

its like i have a part time job now.
hehehe
but its fun.

m3
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EMC 3000gt
post Jun 27 2008, 12:43 PM
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Haha Yeah I know what your talking about!
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bobthecow
post Jun 27 2008, 01:02 PM
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With the 100kmh light, is it only in the higher RPM?

Reason I ask is my Mach 1 does this as well. It is because of the Ignition not firing correctly when the engine is revving that high.
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alan92rttt
post Jun 30 2008, 05:21 PM
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Thier is an upgraded speedo gear you should be able to get from a dealer that replaces the one where the speedo cable connects to the transmission.

It's a % of differance and always fast.

At 80mph I just know I'm really doing 75. I've gotten used to it.
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