1995 Honda Civic Timiing will not change

Tiny
JSIEMSSEN
  • MEMBER
  • 1995 HONDA CIVIC
  • 4 CYL
  • 2WD
  • MANUAL
  • 178,000 MILES
I have a 1995 Honda Civic DX and earlier this year the car started to shutter violently. It happened very sudden. While I drive it, when I give it gas it shutter real bad but if I left up and very lightly excelerate, it is softer and easier to handle. I've checked the voltage and signal to the TPS and the voltage to the MAP and everything checks out, timing belt was changed, and new distributer. I have not received a check engine light at this time. It feels as if the timing will not change. At a certain RPM the engine feels smooth, under or above that range then I start to have thoughts of pullling over. I have not checked the crankshaft positioning sensor yet. What is the likely issue with my timing? The computer?
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Friday, February 8th, 2008 AT 4:32 PM

5 Replies

Tiny
JACK42
  • MEMBER
So you are saying the engine misses above or below a certain rpm range? What rpm range? Does it matter what gear it is in? But under light throttle it will accelerate ok? Im trying to get what you mean
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Saturday, February 9th, 2008 AT 8:28 AM
Tiny
JSIEMSSEN
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It seems to run at its best around the 2500 to 3500 rpm. All other ranges will cause the engine to vibrate. Now the engine will only allow me to acelerate thru that range very slowly. This issue doesn't matter if a load is on the engine or not.
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Monday, February 11th, 2008 AT 4:20 PM
Tiny
JACK42
  • MEMBER
Sounds like a misfire. Tuned up? Valves adjusted? Timing belt ok? (Correctly timed to crank)
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Monday, February 11th, 2008 AT 5:39 PM
Tiny
JSIEMSSEN
  • MEMBER
The timing belt was changed a couple of weeks ago; he entire distributer assembly was replaced right after it started, and the spark plugs were changed recently also. I can't recall exactly when I replaced the spark plug wires but I know it was around 2 years ago. I have not done a compression test yet. I can understand a misfire to cause this but could it start so abruptly? As far as the MAP sensor, the voltage was check at the connector but I did not check the signal voltage with vacuum applied. I will check that soon. If I am unable to cause a 10Hg of vacuum at the MAP sensor, would that mean the throttle body needs to be replace?
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Wednesday, February 13th, 2008 AT 11:47 AM
Tiny
JACK42
  • MEMBER
Might just need to clean the vacuum port it is hooked to. Loosen exhaust befoe the cat adn drive it, loud but it will rule out a plugged exhaust
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Wednesday, February 13th, 2008 AT 6:43 PM

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