between 500rpm to 1000rpm the car misfires and low delay on gas pedal

[motor gear head]

this problem started 4days ago and so far what i have done is recheck the caps ande rotors they are still useable i still need to replace than next how to remove clean and put back the 02 sensor and how to do a spark plug replacement and how to put new injector repair kit.

thank you

 

[nocfn]

If this is after a cold start or warm start after a short drive you may have to remove the rotor adapter bracket to disclose the insulator and the cam seal condition. Check wire connector resistance, and gap plugs to 1.0. Do not use antiseize on plugs and make sure they are proper for the car - dont get super chrome crazy hot plugs. Get the MB plugs for the car, expose the gap to 1.0, and torque to 25nm.

Search the forum for all of this, you will find your circumstance well documented.

 

[motor gear head]

warm start and i didnt drive

 

[gsxr]

A bad O2 sensor shouldn't cause this, and you cannot clean it. If the O2 sensor is very old or original, it should be replaced (search the forum). They are usually good for 100kmi / 150kkm or more.

If the car runs normally some of the time, your injectors are probably fine, no need to replace them. If you can get your injectors serviced (cleaned / flow tested) by a professional injector repair shop, you could do that, but don't expect any change.

If your misfire occurs about 10-20 minutes after a cold start, and goes away after 30-60 minutes, it's likely due to moisture in the distributor caps and/or oil leaks from the exhaust cam sprocket seal, and/or intake cam advance solenoid. Click here for more info.

If your misfire occurs all the time when warm, you may have one or more failing / defective secondary ignition components. How old are your caps / rotors/wires/plugs? Etc.

 

[motor gear head]

all of them are from factory

 

[motor gear head]

and my injectors are leaking i checked it today

 

[motor gear head]

ill send a vid

 

[motor gear head]

 

[gsxr]

Might be the same problem shown here with leaking injectors. You'll need to get them replaced / repaired:

M119 electronic injectors leaking from injector body | M119 Engine

A few months ago, I noticed a faint gasoline odor from inside the passenger compartment while driving. It was only for the first 5-10 minutes after a cold start. When arriving at my destination (total ~20 mins driving), the smell was gone, and popping the hood sniffing around there was no smell...

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[motor gear head]

i went through it damn that is scary with wha happened to your injectors mine are not that condition but noted

 

[motor gear head]

now i have find the injectors the vacuum and the find good cam seaks new distrubtors caps and rotors. where can i find it gsxr

 

[gsxr]

If you are located in Bahrain, I don't know what local suppliers to recommend...

 

[motor gear head]

ill import it or ill have no choice but to engine swap

 

[French02chris]

Can you first read the codes??
I had something similar last year or 2 years ago, when the car was, sluggish on acceleration, and It turned out to be the Camshaft position sensor!!
Also, if your distributor caps and rotors are original, and they definitely need to be changed!! Humidity will cause misfire and these engine.
I replaced mine 3 months ago, as it was misfiring when the car was not fully warm.

 

[French02chris]

ill import it or ill have no choice but to engine swap

I don't think you need an engine swap because your injectors are leaking... Just replace them!!

 

[French02chris]

this problem started 4days ago and so far what i have done is recheck the caps ande rotors they are still useable i still need to replace than next how to remove clean and put back the 02 sensor and how to do a spark plug replacement and how to put new injector repair kit.

thank you

Spark plugs replacement takes 30 minutes if you take your time.... It's super easy to do.
Make sure to buy Copper plugs (not platinum, not iridium)

 

[motor gear head]

what stuff i need to buy to read codes

 

[gsxr]

Read the sticky notes here:

De-Coding

Information pertaining to diagnostic codes, how to obtain and dechiper them, and how to remedy them.

www.500eboard.co