Rep Power: 0

I thought it was my TPS and I changed the Throtle body (will all the sensor on it)

But....

It still running slower than a pony...

I have this code...

AF ratio stuck lean
Cylinder 3 & 4 missfire
ELD high/low voltage

what the hell with this engine.. someone can help me??

 
Rep Power: 413

compression test and leakdown 1st

 
Rep Power: 362

bad ecu?

 
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ECU is the one come with the engine.
I'll make a compression test tomorrow.

Also some people talk about the fuel pump. But I didn't see someone else did the swap and change the fuel pump

So... What I should do ?

 
Rep Power: 343

who did your wiring harness?

 
Rep Power: 0

Heres My Input. Start By Changing 2&3 Plugs. Its Prolly Running Lean Because The Plugs Arent Firing. Youre Running On 2 Cylinders Mister!

 
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I did the wiring.... but only 1 wire talk about the coils

 
Rep Power: 298

yeah check the plugs and do the compression and leak down test. You might want to test the resistance on the coil plugs too.

 
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I try to switch coils to other place and the misfire stay on the 3 and 4 cylinder ... So I suspect I have a trouble with the fuel pump... I'll check the fuel pressure this afternoon

 
Rep Power: 297

whats the update with this?

 
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I change de fuel pump and check the entire wiring of the coils. But it seems I have a trouble with the spark plug, I'll have brand new one tuesday. I'll keep you inform.