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strange problem with 93 rx7

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Old Sep 8, 2012 | 05:29 AM
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strange problem with 93 rx7

This weird problem started happening the other day... when I get to about 2500 rpm its like bogging down I'm not sure how to describe it besides that. But after that it runs fine. Any ideas guys?? Id appricate any help or suggestions... thanks. O and cars all stock.
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Old Sep 8, 2012 | 06:39 AM
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Common problem get a grounding kit
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Old Sep 8, 2012 | 10:22 PM
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Where do you get a grounding kit? I keep hearing the importance of them.
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Old Sep 8, 2012 | 10:33 PM
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I had an engine last me for 135,000 miles. It was fine till about 110,000 but after that I felt the same hesitation between 2500-3000 RPM. Turns out my coolant was leaking into my exhaust and had to replace my engine. Hope it's not the same for you
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Old Sep 9, 2012 | 03:08 AM
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Alright thanks guys!! But... I also just found out its a jdm engine and a jdm ecu but not jdm harness... could that be a problem??
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Old Sep 9, 2012 | 06:59 AM
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you dont need a "grounding kit"

All you have to do is find the grounds and clean them with sandpaper(even a tap and die to clean the threads where applicable) and add a layer of vaseline/dielectric grease to prevent corrosion.
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Old Sep 9, 2012 | 03:06 PM
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Id rather just get a ground kit, hks has them for like 30$
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Old Sep 9, 2012 | 03:07 PM
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Then they're all clean and new and I can just spray anti corrosive on them from the start.
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Old Sep 9, 2012 | 03:31 PM
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Originally Posted by Humboldtrx7
Id rather just get a ground kit, hks has them for like 30$
Originally Posted by Humboldtrx7
Then they're all clean and new and I can just spray anti corrosive on them from the start.
There you go... just cover up the real problem rather than address it. You are going to have a good time maintaining this car..
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Old Sep 9, 2012 | 07:06 PM
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How is replacing the grounds covering up a problem rather than trying to clean the ones that are already there??! That makes sense.
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Old Sep 9, 2012 | 07:50 PM
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Originally Posted by Humboldtrx7
How is replacing the grounds covering up a problem rather than trying to clean the ones that are already there??! That makes sense.
Grounding kits don't replace, they are extra. The car obviously didn't roll off the showroom floor with the behavior you currently have... So instead of bolting on something which might mask the problem, do some actually work on the car and figure out what's really going on. If it's just your grounds, simply cleaning them will work. If that doesn't work, you have a different problem.
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Old Sep 9, 2012 | 09:00 PM
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a grounding kit won't fix resistance through the corroded connections, it will just push a few more electrons through more easily.

hence masking the issues.
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Old Sep 9, 2012 | 09:25 PM
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What if you replaced them completely? I was noticing today the ground from the manifold to the firewall was connected to a bracket with a plastic piece. That doesn't see too smart.
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Old Sep 9, 2012 | 09:43 PM
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Originally Posted by mbaldwin
What if you replaced them completely? I was noticing today the ground from the manifold to the firewall was connected to a bracket with a plastic piece. That doesn't see too smart.
Yep, that one melts, most people also add one from the negative battery terminal to the body.
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Old Sep 9, 2012 | 09:56 PM
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So its ok to use a ground kit if you use it on the originals instead of some people and just placing them every where just cause they think it fixes it lol
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Old Sep 9, 2012 | 10:23 PM
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Hey an FD owner from Eureka, not many up there im sure! Did you buy the red one from the lot next to broadway cinemas? As others have said check the grounds, the firewll to uim can melt and has a crappy connector if its still original and the one on the bottom driver side of engine can become corroded faily easily.
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Old Sep 9, 2012 | 10:46 PM
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Originally Posted by mbaldwin
What if you replaced them completely? I was noticing today the ground from the manifold to the firewall was connected to a bracket with a plastic piece. That doesn't see too smart.
This. That's what I had planed to do. Was just replace any corroded ones completley. And yea if that didn't work then yes naturaly I would figure I had a different problem.
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Old Sep 9, 2012 | 10:48 PM
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Originally Posted by DriftDreamzSS
Hey an FD owner from Eureka, not many up there im sure! Did you buy the red one from the lot next to broadway cinemas? As others have said check the grounds, the firewll to uim can melt and has a crappy connector if its still original and the one on the bottom driver side of engine can become corroded faily easily.
Actually there's 3 up here, two were from sweethart motors and one was bought in oregon. Mine is from down south. And yes they're all red lol.
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