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95 Civic EX
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4 Posts
Discussion Starter · #1 ·
Hello I was having problems with my car and i cleaned the fitv and it runs great but still seems to fluctuate in idle and i was wondering if anyone knows what it could be. I know the map is good. Another random question I installed a tach and it says the car is turning 7200 like it should but the tach in my car is saying it only reaches 6200?? Any idea why the in car tach is reading so far off?
 

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maybe you should do an INTRO thread like you are supposed to, and people will help ya out. making a name just to ask this and never come back is what it looks to be. oem tachs are off, thats all.
 

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95 Civic EX
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Discussion Starter · #3 ·
Your Wrong

Not trying to just make this to ask a question and leave. Just not familiar with how things work on here never used this before.
 

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civic
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fluctuatng idle can be a number of things. could be a vac leak, low coolant, iacv may be dirty. have u done any mods like a new intake mani gasket or tb gasket? check fluids
 

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95 Civic EX
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Discussion Starter · #8 ·
Thanks

I appreciate the commentary. I did notice the guages are for an automatic and the car is stick. could that effect the reading of the tach? And i tried to get the iacv off to clean it. and no luck. used a 12 mm but it was too tight. any advice on how to break it loose? Also it feels like my car will bog a lil sometimes and i got a 43 code but the car has a new pump and main relay and the injectors tested good. the car is getting good fuel pressure so i dont think its the filter. any other suggestions?
 

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EK1
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91 Posts
Check following:

- quality of your fuel used
- Oxygen Sensor(s)
- fuel filter
- Injectors
- fuel pump
- main PGMFI relay
- fuel pressure regulator. ( ensure the vacuum line is connected )
- fuel return line. ( ensure its not clamped off. Its been known to have left a clamp on the return line after a fuel injector flush ).

Did you try reseting the ECU to get rid of the code ? This also usually is the case.
 

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95 Civic EX
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Discussion Starter · #10 ·
Im Tryin!

Ok I checked all the options u gave me for the code 43 except for the oxygen sensor. Shall i replace it? Or is there away to check if it is good. I cleaned the IACV and i still get a fluctuation but sometimes the idle will settle. Wondering wat it is. Any suggestions. The Vacuumes are all good. How do i tighten the needle in the dash RPM tach?
 

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BATSLOMAN GIVES NO FUCKS.
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ot, how close to "three sisters springs" do you stay?
 

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if you have a code 43 look into the o2 sensor. Oem is denso i believe and those same ones can be had form around the net cheapish, you can even go cheaper if you want, i've never heard anything bad from them.

you already made sure the iacv and fitv were clean. Did you reset your ecu after you were done? did you make sure to plug the iacv back in after you took it off...yes i have done this before and felt like a dumbass when i realized that was it.
 

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98 EJ6
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342 Posts
The Malfunction Indicator Lamp (MIL) indicates Diagnostic Trouble Code (DTC) 43: A problem in the Heated Oxygen Sensor (HO2S) circuit or a problem in the Fuel Supply System.



 
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