Freckles

Eg hatch, B18b1, P28 stock non chipped computer. Motor is running, but redlines at 4k. I put my boys chipped p28 and it redlined at like 5k.. What could it be????

fungus mungus

P28 is a VTEC ECU. You have a non-VTEC motor so... maybe use the correct ECU (p75)?

fm

Freckles

It's the ECU that came with my car. I don't have the money for a p75 right now. The p28 was off a b18b1, which is the same motor i have right now. so what else could it be.

furious94ls

it's the ECU, the sooner you accept that the sooner you can save up and buy the correct ECU.

Freckles

Could it be that it's in limp mode? This computer was the same exact computer that was on the same motor i have now. There has to be other reasons why it's doing that.

By the way i'm just suggesting that it could be in limp mode, not confirming it

doood

iTrader: (1)

throwing any cel's?

fungus mungus

The P28 ECU didn't come with that engine originally. It came on a '92-95 Civic Si/EX (SOHC VTEC). It may have come with the car as you bought it, but that doesn't change the fact that it's the WRONG ECU for your setup. If you don't have a VTEC head, that ECU will not work for you. SELL it and buy a P75. You'll have money left over.

fm

Arthas

Buy a P75. P75's are like $50. P28s sell for about $100.

If you want to be fast with your "boy" get the correct ECU.

SpoonMotorSport

2 possibilities in short
1- Limp mode
2- launch control :D
i hope you checked your rev limit while driving rather idling

jbpnoman

Everyone seems to be discounting the fact that the P28 might be chipped to run his motor.

Are you throwing any CELs?

doood

iTrader: (1)

he said it's a stock ecu

jbpnoman

Oh, I missed that part.

In that case, OP, you're running the wrong ECU. Un**** your system.

Arthas

Its your fuel management you got a nasty hole, and thats why, youre redlining at 4.

furious94ls

When you swap motors in cars, you need to run the same ECU that is designed for that motor. I never understood why people tried to "trick" a different ECU. Just do it right, or don't do it at all. That's the answer.

jbpnoman

Your fuel's got a nasty hole, man. That's why you're unloading in 4th. If you're going to quote a movie, at least do it right

Freckles

It was in limp mode. I reset the ecu and the car is running fine now with the P28. Lmfao

beecee18

Run with the wind then brotha,

Honda spent thousands/millions/billions designing and created and testing parts to match and work together just for guys like you to swap em up,
We should all be lMAOing at the fact your getting fueling and timing values from a single cam box .2 liter smaller, and you think it is quote, "running fine now with P28"

Wow todays been a good one, who opened the floodgates?

fungus mungus

And how do you suppose it got into limp mode in the first place?

fm

furious94ls

In a few days/weeks it will be screwed up again. Not to mention the car isnt running at it's full potential or tuned. Basically it's ****.

DelSol-B18

iTrader: (4)

Haha your a funny dude. P28 was never designed for a ls motor

Former User

This thread has reached its natural conclusion. Closed.