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** HELP** changed tps and its still like this (video in post)

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Old Mar 16, 2010 | 09:46 PM
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Exclamation ** HELP** changed tps and its still like this (video in post)

hi everyone i just changed the tps and it still like this ... i have a video that i just up loaded

problem:
-it wont rev up immediately.
-it sounds like its choking when i mash on the gas and i back fires
-the tachometer does not work

my car:
-86 rx7 n/a 137xxx miles


<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/ifUxA77SqPc&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ifUxA77SqPc&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>
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Old Mar 16, 2010 | 10:47 PM
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one thing.... don't play with your gas like that anymore, you could make it worse than it is. did you check any of the fuel lines, injectors, stuff like that???? Do you still have emissions? anything done to the car?
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Old Mar 16, 2010 | 10:59 PM
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IF the tach doesnt work your trailing coil could be bad. Thats where the tach gets its signal from. See if you got spark to the trailing coil pack first.
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Old Mar 16, 2010 | 11:30 PM
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Originally Posted by jmabo205
one thing.... don't play with your gas like that anymore, you could make it worse than it is. did you check any of the fuel lines, injectors, stuff like that???? Do you still have emissions? anything done to the car?
lolz sorry i wont do that again ... the fuel lines are good and injectors are good .... no more emissions


open 5-6 ports
hks intake
racing beat front to back
aluminum drive shaft

earlier i started it up and it was okay and then after 30sec it went back to what you see in the vid
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Old Mar 16, 2010 | 11:31 PM
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Originally Posted by FelixIsGod29X
IF the tach doesnt work your trailing coil could be bad. Thats where the tach gets its signal from. See if you got spark to the trailing coil pack first.
there is spark cuz i shocked myself the other day =(
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Old Mar 17, 2010 | 12:03 AM
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spark plug wires in the right spot?
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Old Mar 17, 2010 | 12:32 AM
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Originally Posted by Brodie121
spark plug wires in the right spot?
checked it and its rite
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Old Mar 17, 2010 | 01:33 AM
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Originally Posted by drifter_xs
checked it and its rite
Timing set right?
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Old Mar 17, 2010 | 01:36 AM
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messed up maf will cause problems exactly like that. I'd try to locate another known good one and give it a shot.
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Old Mar 17, 2010 | 01:58 AM
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Originally Posted by Brodie121
Timing set right?
i havent checked but the last time i did the timing a 2 months ago and locked it on with a cap. but i can check again ...
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Old Mar 17, 2010 | 02:01 AM
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Originally Posted by Z3r0 s1gnaL
messed up maf will cause problems exactly like that. I'd try to locate another known good one and give it a shot.
really? ... i guess i gotta go get one to see then ... lolz


any more ideas anyone?
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Old Mar 17, 2010 | 04:39 AM
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bad gas?? lol jk

idk good luck with fixing
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Old Mar 17, 2010 | 04:00 PM
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thanks lolz
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Old Mar 19, 2010 | 02:30 AM
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how old are plugs and wires? cause i had a friend with a bouncy/sort of working tach and when he changed the plugs and wires it fixed itself so i would assume if you left them a really really long time it would end up like that
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Old Mar 19, 2010 | 03:20 AM
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If you shocked yourself then its possible a plug wire is bad and arcing.

or maybe its because you dont have a steering wheel
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Old Mar 19, 2010 | 03:33 AM
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When you hold down the gas does it actually rev up or does it sound like it sputters but stays under 2-3k?
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Old Mar 19, 2010 | 06:42 AM
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Originally Posted by Mez
how old are plugs and wires? cause i had a friend with a bouncy/sort of working tach and when he changed the plugs and wires it fixed itself so i would assume if you left them a really really long time it would end up like that
ive changed the wires and the plugs are fairly old i think.
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Old Mar 19, 2010 | 06:46 AM
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Originally Posted by Zerkster
If you shocked yourself then its possible a plug wire is bad and arcing.

or maybe its because you dont have a steering wheel
i shocked myself when i unplugged it off the spark plug and the spark from the wired jumped to my finger. so it gave me a good buzz lolz

lolz i do have a steering wheel just bought a new one today lolz.
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Old Mar 19, 2010 | 06:51 AM
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Originally Posted by Mutaku
When you hold down the gas does it actually rev up or does it sound like it sputters but stays under 2-3k?
i can rev it up slowly and it sounds like misfiring (parked) but when i mash my foot on the gas to to go faster (driving and just sitting) it sputters and chokes. its like power just dies.
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Old Mar 19, 2010 | 03:28 PM
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change out your maf sensor.
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Old Mar 19, 2010 | 03:29 PM
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Are you absolutely positive that you have the leading and the trailing wires in the correct places? If the tach doesn't work, something is going on at the trailing coil.
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Old Mar 19, 2010 | 03:39 PM
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The LEAD coils sparkplug wires go to the bottom two sparkplugs and frankly it matters not if you swap those two wire around because they fire at the same time.

The TRAIL sparkplug wires DO matter as to which upper sparkplugs they go to. The most fwd of the sparkplug wires at the coil, goes to the most fwd sparkplug (upper plugs) on the top.

The other trail sparkplug wire goes to ...........yes, there.
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Old Mar 20, 2010 | 12:39 AM
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Originally Posted by rotarygod
Are you absolutely positive that you have the leading and the trailing wires in the correct places? If the tach doesn't work, something is going on at the trailing coil.
Investigate the trailing coil. I had very similar problems, my tach went out and shortly after it started bogging when I hit the gas. Solved both problems by redoing the ground found underneath the trailing coil.

Couldn't hurt to check the plugs after you do that too, as it sounds like they've been working pretty hard and might be in need of a cleaning.
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Old Mar 20, 2010 | 05:46 PM
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my car has this same problem when the car is first started up, but after it warms up it goes away...could i have the same problem ? my wires are fairly new , plugs are kinda old , and i do have a spare maf somewhere that i could see if swapping fixed the problem.

my tach has recently started getting jumpy and i also am driving with no o2 sensor cuz the connector is broken
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Old Mar 20, 2010 | 08:01 PM
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If there is a problem w/ the tach the first thing to check is the ground under the trailing coil, then the coil itself. Don't ask anyone anything until you have done these things.
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