2G I did a auto to standard swap and it has no power

[Tomi Crawford]

Ok I recently swapped out a auto 99 eclipse 420a to a standard from a 97. The car just doesn't feel right it feels like there is not the power it should have. I hoped that I could swap the ecu and eliminate the tcu and it didn't help. I am hoping there is am easy fix without swapping the whole wiring harness. I know the ecu has a different tune or something

 

[OHM_Racer]

This is weird, my friend did the exact same thing, and power was the same on the butt dyno...

 

[SaulHudson]

Wait so, are you expecting it to be faster by having a manual?

 

[boost97gst]

I have used a AT ecu in a MT car with no issues. Vice versa as well. IDK whats going on but i wouldnt think its the ecu. Then again, i was modding my 420a and this was a very very long time ago.

You should feel a tiny bit more power with a manual but its not night n day difference. ATs dont "soak" up too much power, and when you're starting with 120hp, removing any drivetrain loss still isnt going to feel a whole lot different.

 

[OHM_Racer]

I would be checking the engine compression for this, Something has to be bad on the engine.

 

[Alex553]

Your not doing 3rd gear pulls are you?

 

[Lolmooses]

Is the car actually underperforming to a noticeable degree compared to before the swap or are you under the impression that it should be faster because its a 5 spd?

 

[Tomi Crawford]

It's a really notable loss in power... sorry I hadn't got on here but I've worked every night since I posted that.... but we did the swap because the auto went out and o had a extra standard at home. The rear pump went out and it was cheaper to just swap it out[DOUBLEPOST=1407981607][/DOUBLEPOST]See I've had 2 5spd 97 eclipses the tranny we put in that 99 was my first eclipses tranny and it originally was out of a 97 talon the motor on it started to knock and I happened to come across another whole car pretty cheap so I decided to keep my old one as a parts car since it still did drive.