MrHH

Earlier in the month i posted about my engine acting up and spuddering and not running

Well i recently finished my car and put a whole new engine in it, ran the vin and its the same exact engine that i had in my car before. Everything is the same but the car still spudders, is hard to start, backfires at low rpms and will not stay running. I have no idea what it could be at this point. We changed the coil pack, and we might buy a new MAF sensor. but besides that i have no clue what to do. The car has a GReddy turbo kit on it with a turbo upgrade from Turblown. It was tuned by Jeff at mazdamaniac but that was acouple years ago. Help

New engine has VERY good compression levels

wcs

iTrader: (2)

Well where to start?
ESS failure
ECU failure
Vacuum leak
Broken exhaust manifold

And what do you mean its the exact same engine? So the broken engine is back in?

Last but not least you really need to start your tune from scratch again.

monchie

At least your issues is not as big as this...

paimon.soror

iTrader: (15)

gunna go out on a limb here and say you probably dont want to be using a custom tune from one engine on another engine and expect it to work without issue.

Like WCS alluded to, sounds like your tune was borked from the start.

MrHH

my car is dumping alot of fuel into the motor and we don't know the cause.

paimon.soror

iTrader: (15)

bad tune, bad injectors ... ?

\\Konig\\

iTrader: (4)

your tune is off, simple as that. get it re-tuned.

MrHH

I found the problem the injectors are in the wrong slots, can anyone make or find a diagram of the wiring injector for a 04

RIWWP

iTrader: (2)

That's apparently the most common mistake on an engine replacement. I would theorize that incorrectly hooked up injectors wasn't your prior problem though

Check the Engine replacement DIY thread for the correct connections.

paimon.soror

iTrader: (15)

do i at least get some credit ?

9krpmrx8

iTrader: (46)