1994 Honda Civic

Tiny
VIXSTER09
  • MEMBER
  • 1994 HONDA CIVIC
1994 Honda Civic 112000 miles

I have been having considerable trouble with my 1994, Honda Civic LSi 1493 engine, for a while now. It was idling erratically, so we changed the idle control valve and it cured that problem. Now it has become completely undriveable, stalls at every given opportunity and I have to rev the hell out of it to get it to go anywhere, and even when it does go it hesitates on acceleration, basically it doesn't want to know!

It went on for an emissions test, the cat showed up to be blocked, and that has since been replaced, it has had the fuel pressures checked, compression tests done all showed up as everything being fine, new spark plugs and a new distributor cap, it has even had the ECU sent away as a further test showed up it was over fuelling itself. The ECU came back showing no faults at all. We are now thinking about the timing belt? I am at my wits end trying to figure out what the problem is, I have been a month without being able to drive it and I am due back at work in a couple of weeks and need my little car to get me there! Any help would be greatly appreciated!
Do you
have the same problem?
Yes
No
Thursday, April 9th, 2009 AT 6:07 AM

2 Replies

Tiny
RASMATAZ
  • MEMBER
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Was this
answer
helpful?
Yes
No
Thursday, April 9th, 2009 AT 6:17 AM
Tiny
MHPAUTOS
  • EXPERT
HI there,

Thank you for the donation,

With a problem like this its always good to go back to the basics, never presume that something is ok, check and re check. So I would do a comp test, check valve clearances, fuel pressure & flow, vacuum leaks, ignition test on an oscilloscope, clear any ECU codes & after a re start re scan and check for any new set codes, check valve timing, check for cross firing ignition(faulty leads or cracked distributor cap) check injectors, ignition timing just don't presume that something is ok.

Mark (mhpautos)
Was this
answer
helpful?
Yes
No
Thursday, April 9th, 2009 AT 6:21 AM

Please login or register to post a reply.

Recommended Guides