NAHAR

Ok guys have a 04rx8 I just sealed the engine . I took the pulley off to put the engine in from the top. Now car won't star it takes a while to start once it's tuning on stay on for long I try to give it gas it will die. Check eng is on and flashes gives me p0336 crank position sensor and miss fire cylinder 2 and random miss fire. Also car won't rev pass 4 it's very slow. Got new coil packs crank sensor now I can't figure it out. Would starter have something to do with timing issue since it works with fly wheel? Please help

RX8Soldier

iTrader: (24)

just sealed the engine?
Maybe some more info is needed... Why did you seal the engine? How many miles?

dannobre

iTrader: (3)

Did you reset the ES Sensor? ( brake stomps) The PCM needs to be reset after replacing the engine

The car could be in limp mode if it won't rev past 4K rpms....the MOP is an often found cause

If it will rev immediately after starting...then won't after about 6 seconds the MOP is where I would look first..........

StealthTL

iTrader: (1)

Do the resets, reset the CELs, get back to us.

bse50

I can't understand what you just wrote, sorry.

NAHAR

I did the reset thing and it didn't work it will rev up to 9k then it will go back to same think .

NAHAR

What is mop? Mass air flow seansor?

RX8Soldier

iTrader: (24)

Metering
Oil
Pump

RXeligion

I would double check all of your electrical connections. I would also like to know more about the process of sealing your engine.

NAHAR

Sealing engine what do u mean? Engine came from the dealer?

NAHAR

I checked the oil metering pump seems to be ok

NAHAR

Thank you rx8soilder it was the mop sensor put a new one one reset the computer now here she goes thanks man

dannobre

iTrader: (3)

MOP sensor? Did you replace the pump? Or reset the switch?

Or was it the MAF?

dynamho

dannobre's initial diagnosis regarding OMP appears correct.
It looks like he replaced the OMP sensor and fixed the issue.

dannobre

iTrader: (3)

I'm just trying to figure out what " sensor" he replaced. The position switch isn't available separately and the MOP itself is $1200 new

dynamho

I didn't know the position sensor was only sold as part of the entire OMP assembly.
Can't believe the price of the pump. It's about half the price of a reman motor.