my checkengine light is onn..

i did a Diagnostic check on my itr and this is what pulled up.

P0301 Cylinder 1 Misfire Detected


does that cause my car idle to rev 500-4k? up n down?? and my cars seem to be running very rich rite now happend 3 weeks ago...can it be cause by valcume leak?? so farr i have lots of peoples telling me its only a valcume leak... idk.. help?

 

Check your spark plug wires, spark plugs, distributor cap and rotor. Those are the main things that cause misfires most of the time when they wear out.

 

i just check all of my spark plugs n wires.. they all sparks... what else....

 

cap and rotor.....

 

Check the valve adjustment. If it persists, check the injector(s). Were there any visible differences in the spark plugs?

 

swap out a plug and wire from a known good car first, just because it sparks doesnt mean it isnt misfiring or arching out the wire inside the head. after that, swap the injector with another cylinder and see if the misfire changes cylinders, and of course make sure your valve clearence is good.

as far as your idle concern goes, check to see if the thermal valve is sucking air while the car is already warm. take your intake arm off and look inside the throttle body, there is a little passage way before the butterfly, if this little passage way is sucking when the car is already all warmed up then you need a new thermol valve

 

blown rings in cyl 1. check compression if everything else is good

 

check check!! just bought the compression thing fron autozone and all of em is at 180... i recheck the code this is what it pops up..

p1399
p0301
p0302
p0303
p0304
p0300

 

im thinking its the code p1399 = speed sensors... wth is that and can it be that causing all the miss firing???? my car is running very rich rite now and its bogs alot so i have to step on the pedal a bit more... idling is still reving up n down.. wth..! lost.. HELP!

 

Just curious. Have u reset your ecu??

 

ummmm... how? or do u mean reseting the code and see if it still pops up?

 

yeap. clear out the codes. Drive or startup and see if the codes return.
Rather than using a scanner 2 clear out. remove the ecu fuse under the hood or disconnect the neg. on the battery for a min.

 

where is my speed sensors att??????

 

https://honda-tech.com/forums/acura-integra-6/vss-code-98-acura-integra-2486789/

it's located on top on the tranny close to the firewall on the passenger side near the rear mount bracket.

2 lazy to host a pic right now.

and this thread sounds like the issue u have. p1399 is a unkown code.

https://honda-tech.com/forums/acura-integra-6/codes-p0301-p0302-p0303-p300-p1399-help-1962862/

 

thnxx wicked!!! but yeahh im thinking its my speed sensor.. idk yet ima go to autozone and guy a new one to preplace it and see what happends.. 169.99 haa ima return it if its not the problem.. so yeah. also maybe it can be my injectors crapp!