drgtr

When cold or slightly cold. The car stutters and hesistates on light throttle.
WHen warm it drives and idles perfectly. Even after warmed up and the car is parked for abit. It does the same when you drive again but for much shorter duration.

I have changed leads
Plugs
upper engine cleaner
Cleaned throttle body
CHanged fuel filter
Cleaned MAP sensor too
Checked Timing



I havent changed oxygen or knock sensor. COuld it be one of these?

drgtr

Hopefully Ron sees this one. This one is annoying me.

drgtr

Just on that note.

Has anyone had a faulty o2 or knock sensor?
What were the symptoms?

EFPhilly

what kind of plugs are you running and at what gap. And what modifications. If you run cold racing plugs, there is no way around this I have seen but I get light hesitation. What ecu are you running as well.

on a side-note:And how did you clean your MAP sensor...

drgtr

Im running standard plugs with factory gap.
Car has no mods.


I took the map sensor off and sprayed it with CRC contact cleaner. Is this the wrong way?

Factory Integra type R ecu. 1999 model

C4_Gsr_civic

Did you check the tps?

drgtr

yep. 4.9 volts brother. All good.


I heard dizzy caps and the rotor themselves can play up when worn?

Former User

Any CEL codes?

Have you inspected the distributor cap and rotor?

Have you cleaned the IACV, and FITV if the engine has one?

drgtr

hey ron.

Yep cleaned the IACV really nicely. This engine doesnt have a FITV.

I opened up the dizzy cap and cleaned the connectors with contact cleaner. Didnt sand them. Cleaned the thing that spins around (rotor)?

Cleaned the intake temp sendor that sits on one of the intake manifold runners. That had black goo.

It seemed to fix it. The dizzy cap contact points look white?

I will try to drive again when its cold. Cross my fingers

Former User

You may want to gently scrape the corrosion from the contact points inside the distributor cap and lightly sand the contact point on the rotor.

drgtr

I just went out again and sanded both with very fine sand paper. The rotor looks clean now. half of it had some brown stuff.
The contact points on the cap have this white powdery stuff. I sanded but it didnt all come off?
Should I scrape witha screw driver?

Former User

Yes, you can use a small flat head screwdriver to gently scrape off the corrosion.