• Registered users are encouraged to enable MFA/2FA to add an aditional layer of security to their account. More information can be found here: https://www.ncsc.gov.uk/collection/top-tips-for-staying-secure-online/activate-2-step-verification-on-your-email

car misfiring in vtec zone.

J

jla82

Messages
46
Just brought a civic type r ep3 04 reg and it drives brilliant and the engine runs very smooth but sometimes when I go into the vtec zone after 6000 rpm,the engine misses,its done this quite a few times but if I keep it under this it runs brilliantly,dosent cut out and pulls quite strong.
Has anyone else experienced this or might know what the problem might be?
 
There is a dip in the torque curve at the standard VTEC changeover point [5900rpm]

New owner will feel this as a flat spot, where the acceleration halts for a split second before picking up.

I posted up when I first had my EP3 thinking something may be wrong. If you check out a graph of the power/torque curve you will see it clearly.

Hope this is the case and not something more serious.
 
ecu might only pick up a fault if its bad and doing it in all the rpm range, if your not sure take it to honda or a garage you trust and go for test drive with the techincian to show fault.

danny
 
No its not actually when the v-tec kicks in,its slightly afterwards./the vtec kicks and the engine starts to pick up but sometimes straight after it will miss.
My buddy plugged it in to a cheap reader and it was saying crank postion sensor,but after reading about the timing chains streching and then the engines braking,it has made me nervous,so booked it into honda for a diagnostic.
Only just brought the car,so Im swetting abit at the moment,thanks for the help though guys.
 
jla82 said:
No its not actually when the v-tec kicks in,its slightly afterwards./the vtec kicks and the engine starts to pick up but sometimes straight after it will miss.
My buddy plugged it in to a cheap reader and it was saying crank postion sensor,but after reading about the timing chains streching and then the engines braking,it has made me nervous,so booked it into honda for a diagnostic.
Only just brought the car,so Im swetting abit at the moment,thanks for the help though guys.
Click to expand...

Let us know how you get on.
 
scottmurray2890 said:
Why has no one said bought yet?
Click to expand...

Maybe the posted replies are concerned with answering/helping him with his problem rather than correcting his spelling. ;)

I hope the garage find out whats happening; let us know what they come up with.
 
Evl said:
Maybe the posted replies are concerned with answering/helping him with his problem rather than correcting his spelling. ;)

I hope the garage find out whats happening; let us know what they come up with.
Click to expand...

Usually the grammar/spelling police are out in force that's all :smt047
 
You must log in or register to reply here.
Back
Top