1994 Honda Civic Only changed O2 sensor now car wont start!

Tiny
AMARTINEZ209
  • MEMBER
  • 1994 HONDA CIVIC
  • 4 CYL
  • FWD
  • MANUAL
  • 166,956 MILES
I have a 94 Honda Civic DX. I have just changed the O2 sensor now the Car wont start everything was in running condition before I did this. Battery, distributor, plugs, wires, fuel filter and pump and relay are all new. What could be the problem?
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Friday, May 29th, 2009 AT 7:49 PM

5 Replies

Tiny
RASMATAZ
  • MEMBER
An oxygen sensor will not prevent the engine from starting-backtrack your work
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Friday, May 29th, 2009 AT 8:15 PM
Tiny
AMARTINEZ209
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Thanks for your help I back tracked on all my work and found the problem. Don't I feel dumb Lol thanx for the help
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Friday, May 29th, 2009 AT 9:24 PM
Tiny
RASMATAZ
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What's the fix maybe others will learn from it?
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Saturday, May 30th, 2009 AT 12:44 AM
Tiny
AMARTINEZ209
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Once I back tracked my work I found the problem! The fix was a faulty wiring to the starter (12v wire, a ground wire) once I replaced the faulty wiring the car started right up no problem runs great thanx for the help
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Sunday, May 31st, 2009 AT 4:59 PM
Tiny
RASMATAZ
  • MEMBER
P1494 Leak Detect Pumps SW or mechanical fault
Leak Detection Pump (LDP) switch operation is monitored immediately after a cold start, with ambient temperature 40-90 degrees F and engine coolant temperature within 10 degrees F of ambient temperature. DTC will set in Powertrain Control Module (PCM) memory when PCM does not sense a change in switch state when LDP solenoid is energized.
Possible causes are:
Leak or obstruction in LDP vacuum supply.
Defective LDP.
LDP switch senses circuit open, shorted, corroded or defective PCM. The switch connector is a very common problem. So it seems the code is set at startup, when certain temperature parameters are met - which may be why the dealership said it's ok to drive.
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Sunday, May 31st, 2009 AT 8:04 PM

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