Studdering RB20det

[240+civic=pimp]

Need some advise.

THe car idles good but when you give it throttle it studders.

If you give it full throttle it pops and then stalls and then it will boost and go??????

Fuel pressure???

[Yellow4g63]

Need some advise.

THe car idles good but when you give it throttle it studders.

If you give it full throttle it pops and then stalls and then it will boost and go??????

Fuel pressure???

Bad coil pack? or bad spark plug maybe.

[HotWIRED]

Sounds like the engine is being flooded. But I would also check for clogged fuel filter, low fuel pressure, vacuum leaks.

[240+civic=pimp]

replaced all the coilpacks, spark plugs.

Fuel pressure was at 40-50 psi at idle and at WOT.

ECU?????

[Eikon]

Maybe ECU... Maybe MAF? Is it reading airflow correctly?

What would happen to fuel pressure if your TPS sensor went bad?

[240+civic=pimp]

I unplugged my MAF sensor and it still ran like ****.

how could i test the MAF?

TPS sensor is good.

I have an ecu comming from mckinney.

I had to pay 200$ though

[goofynick6]

Try unplugging your oxygen sensor. If that didn't help, try unplugging the TPS sensor.

[240+civic=pimp]

I unplugged thwm both at idle.

O2 did nothing and tps made the car want to die

[Joe]

I unplugged my MAF sensor and it still ran like ****.

how could i test the MAF?

TPS sensor is good.

I have an ecu comming from mckinney.

I had to pay 200$ though

lol dont unplug your maf that will create a world of other issues.

clean your maf sensor, rubbing alcohol, a q-tip and a GENTLE hand. let it dry, try again.

[Carl H]

timing is off i bet you 5 dorra.get a gun on it and come back with the results.

[240+civic=pimp]

I never adjusted my timing. This just started after i upgraded some parts!!!!

[goofynick6]

What parts? FMIC?

[SillyRB]

Check the following, didnt read the whole thread so i dont know what was said. sorry.1) PCV could be clogged2) TIMING, CAS, ETC, make sure its @ Base3) Fuel Pressure

[240+civic=pimp]

I upgraded turbo injectors and went to a bigger FMIC and piping.

I have a spare CAS i could try.

fuel pressure was 40-50psi

[goofynick6]

On that note...good luck!

[Carl H]

I upgraded turbo injectors and went to a bigger FMIC and piping.

I have a spare CAS i could try.

fuel pressure was 40-50psi

or you could take some freeking advice and put a timing light on it and see where your base timing is...........your base fuel pressure should be 43 psi with vac line disconnected.

[240+civic=pimp]

What is the easiest way to do this on the rb.

[240+civic=pimp]

I recieved my new ecu last night.

Im going to install the stock injectors clean the MAF and install a new ingnitor, the eiring and coil packs.

If this fails ill read my rb manual and check the timing.

Hope this all works.

[Eikon]

Good luck man!!

Hey, when you figure out the timing thing... do you want to meet me in Oshkosh sometime and teach me how to do it?

[240+civic=pimp]

Sure thing, I bought the full service manual on the rb20det R32.

I should be able to figure it out.

[240+civic=pimp]

Alright, The new ecu makes the car run perfect!!!

Thanks for the advise guys!!!!