1998 Honda Civic My engine is misfiring

1998 HONDA CIVIC
140,000 MILES • 4 CYL • 4WD • AUTOMATIC
Avatar
BERTO1213
  • MEMBER
  • 1 POST
My engine light turned on today and I got codes p1399 and misfire code for cylinder one and I changed all the spark plugs and the fuel injector for cylinder one the wires where changed about 2 months ago I really don't know what to do
Mar 15, 2010 at 9:08 PM
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check no.1 compression both wet and dry tests could be blending in with P1399

Misfiring can also be cause by the following:

1.Defective spark plug.
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
Mar 15, 2010 at 9:32 PM
Avatar
BERTO1213
  • MEMBER
  • 1 POST
The car shakes really bad when I brake and a little when I park I'm just really worried.can I drive it like this I'm not sure because the first time the engine light turned on I changed the wires and put fuel injector cleaner and it worked for a couple months and then it started up again and I tried the cleaner again but it didn't work and then I changed the cylinder one fuel injector and all the spark plugs the mechanic deleted all the codes and it didn't turn on but the car still shaked a bit and then the light came back on again today
Mar 15, 2010 at 10:24 PM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check the vacuum hose that goes to the power brake booster and the booster itself if its leaking
Mar 16, 2010 at 1:54 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.