tach and spedo when out
#1
I'm a CF and poop smith
Thread Starter
tach and speedo went out
hey guys,
I have a friend and his both the spedo and tach just stop working? anyone know what it might be? i think its the computer but i have read that the ECU doesn't send a signal to the Dash, the trailing coil pack does. it could be the Cold solder joints or corroded screws on the back of the cluster. What do you guys think?
any suggestions would be very helpful
thanks
I have a friend and his both the spedo and tach just stop working? anyone know what it might be? i think its the computer but i have read that the ECU doesn't send a signal to the Dash, the trailing coil pack does. it could be the Cold solder joints or corroded screws on the back of the cluster. What do you guys think?
any suggestions would be very helpful
thanks
Last edited by skunks; 06-01-02 at 05:46 PM.
#7
going ls
Join Date: Jan 2002
Location: South Florida
Posts: 602
Likes: 0
Received 0 Likes
on
0 Posts
my odometer went the other day. I just got in the car and those little comforting lights with 90k on them just went. any ideas of how i can fix this without going and spending like $1000 .
Trending Topics
#8
tach and speedometer
when my speedometer went out, it was because of
my old O2 sensor. bought a new one and it started working again. when my tachometer was out. i knew
it couldve been the coils or the tack itself. i went out
and bought a new tach from a mazda dealer. 600 dollars. replaced the tach with the new one and it worked again.
speedometer - check the O2 sensor
tach - check the coils or the tach itself
my old O2 sensor. bought a new one and it started working again. when my tachometer was out. i knew
it couldve been the coils or the tack itself. i went out
and bought a new tach from a mazda dealer. 600 dollars. replaced the tach with the new one and it worked again.
speedometer - check the O2 sensor
tach - check the coils or the tach itself
#10
I'm a CF and poop smith
Thread Starter
Ok, I just wanted to bring back this thread to say i finnaly got around to fixing my friends dash/gauge cluster (since almost nobody follows up on their stories). In anycase, it turns out it was a cold solder point for a transistor on the back of the speedometer.
You could clearly see that the solder broke off. I alsot found out that tach runs directly off the speedometer.
The reason why it took me about 6 months to fix is cuz he just never got the time to come over to my house and let me tinker with it. (Actual fix time was pretty damn fast). At least tomorrow, there will be one more FD on the road which is fixed
On another note, since I got the dash guages cluster off and just sitting on my desk, I'll be working on a CF overlay for it Look for pics soon
You could clearly see that the solder broke off. I alsot found out that tach runs directly off the speedometer.
The reason why it took me about 6 months to fix is cuz he just never got the time to come over to my house and let me tinker with it. (Actual fix time was pretty damn fast). At least tomorrow, there will be one more FD on the road which is fixed
On another note, since I got the dash guages cluster off and just sitting on my desk, I'll be working on a CF overlay for it Look for pics soon
#13
thats not paint....
hmm well can you help me with my problem... If I accell hard in 1st or 2nd gear to where the nose of the car jumps up a little my tach and speedo will drop to 0 until I key off then on again. The odometer goes as well. My PFC still reads tach but no speed and I have a blitz turbo timer which reads speed. I was thinking maybe a bad connection where the blitz is hooked to the speed sensor, but would that cause the tach and odo to go as well?
#14
I'm a CF and poop smith
Thread Starter
Originally posted by 7-sins
hmm well can you help me with my problem... If I accell hard in 1st or 2nd gear to where the nose of the car jumps up a little my tach and speedo will drop to 0 until I key off then on again. The odometer goes as well. My PFC still reads tach but no speed and I have a blitz turbo timer which reads speed. I was thinking maybe a bad connection where the blitz is hooked to the speed sensor, but would that cause the tach and odo to go as well?
hmm well can you help me with my problem... If I accell hard in 1st or 2nd gear to where the nose of the car jumps up a little my tach and speedo will drop to 0 until I key off then on again. The odometer goes as well. My PFC still reads tach but no speed and I have a blitz turbo timer which reads speed. I was thinking maybe a bad connection where the blitz is hooked to the speed sensor, but would that cause the tach and odo to go as well?
here are some pics I took, the pen is pointing to where the solder was missing.
http://silverfd.efiunlimited.com/dash/
Good luck.
P.S. Is your blitz turbo timer constantly working to read speed or does it go out. As I understand it, when you take off really hard, both your stock tach and speedometer stop working, your pfc speedometer stops working and the blitz turbo timer reads rpm just fine and never turns off. Is this correct?
#15
thats not paint....
Thanks for the info I forgot to check up on it, cuz it stopped when I put my new suspention in. Now The tach has a mind of its own and sometimes will hang at 9k or 4k. It usually works when I first start the car but only for a second then it hangs at 1.5k and creeps up as I drive. By the time I have the car back in the garage its at 9 and will stay there for a while even when the car is off.
So the solder is actually on the breadboard? damn thats hardcore, guess better than spending 600$ on a tach though.
The blitz turbo timer read speed out fine after the speedo cut out. But yeah the Power FC read out. Now with the tach problem my Power FC will still readout... so probably something with the gauge huh.
Thanks,
Chris
So the solder is actually on the breadboard? damn thats hardcore, guess better than spending 600$ on a tach though.
The blitz turbo timer read speed out fine after the speedo cut out. But yeah the Power FC read out. Now with the tach problem my Power FC will still readout... so probably something with the gauge huh.
Thanks,
Chris
Thread
Thread Starter
Forum
Replies
Last Post
befarrer
Adaptronic Engine Mgmt - AUS
3
09-22-15 09:33 AM