Heres the story, I bought a 70mm throttle body for my high compression ls/vtec, i port matched the intake, and after putting the IM manifold and throttle body back on the car is running like ****. The TPS is set right, and everything seems to be hooked back up right, but the car is getting waay to much gas, and its smoking out the exhaust more then you've probably ever seen anything smoke. Im pretty sure the smoke is fuel, it smells like fuel. we did a compression test and it was 250, so my compression is still good, so nothing is blown; right? But during the compression test fuel came out of the first cylinder. Even after putting my stock throttle body back on, and hooking everything back up how it was in the beginning its acting the samw. What could be causing all of this?
This motor is tuned with hondata s100

 

bump, anyone?

 

Hmmm. You may what to invest in an apexi AFC or have your Honda tech reflash your ECU. You have a lot more air flowing into your engine and it is ******* up all your sensors and crap. Your hondadata is probably still tuned for the stock TB or it needs to be fine tuned relay bad. I had a similar problem on my talon I got the AFC and self tuned it and then went to a shop and had it fine tuned big inprovement.

 

But why would it still be doing it after i put the stock TB back on if it was just the excessive air flow?

 

Perhaps your O2 sensor is fouled with carbon.

 

I gave up....



Taking it somewhere and letting them put it on a dyno, hook it up to the hondata software and find out exactly what the problem is. I'm pretty sure at this point it is the injectors, i think i got some brake parts cleaner in them when i cleaned the intake manifold. But i dont wanna spend 400 bucks on injectors and tha tnot be the problem.

Wish me luck

 

NOOOO. I hate seeing this stuff happen. I also think that it could be your O2 sensor and that you need to have it re-tuned because of how much more air your moving through the motor. Did you already try unhooking the battery for 10 minutes and then reconnecting it to reset the computer?

 

so you replaced the manifold and tb at the same time. what kind of mani? was it used?

 

No, i didnt replace the mani, its a skunke2 IM i just removed it, port matched and put it back on.

 

dunno? but i do like your teg