I got a LSI civic with a d15b2 in it. New motor just broken in. I start the car and drive fine with it, it revs fine, drives fine. But as soon as it gets warm the car sputters on a cruise throtle. Let´s say I´m on a ave driving with 15% throtle and all of the sudden it loses power like it´s runing out of gas. Then if I give it little gas more like 25% throtle lets say, it sputters really bad and almost dies. But then if I give it WOT it drives good.
THis is what I looked into and havent solved it. I changed the TPS and adjusted it. I changed the fuel filter, spark plugs and wires are new, fuel pump is 7 months old. I resodered the fuel pump main relay and it look fairly new too. I opend the dizzy and cleaned every thing inside, I´m getting good strong spark. Cleaned ICAV, I clamped the MAP line and the car died. I checked the upper throtle ( the automatic one) and it seems fine. I checked the Intake temp sensor. I also swap my 1 wire o2 for a 4 wire and connected just the lead wire but it still does the same thing. The car does this every single time after it´s warm. i can´t even drive it no more. I also noticed that it won´t rev pass 5k and that I have so oil in the dizzy. But I cleaned it and the problem still persists.

Please help me. I´ve done a ton of search but nothing yet.

Thanks in advance!!!

 

does the car smoke
do a compression test

 

No smoke, diad a crompression test and all cylinders are good.

 

what were the readings?

 

range from 160 to 175

 

have u checked your timing after the car is warm? your belt could be pretty worn out/

 

the best is good cuz it´s a fully rebuilt and it´s got 500 miles on it. but I am runing a skunk 2 cam gear that didn´t come with a wood ruff key so I made one at the machine sho so i moves a degre or two after tight but i adjusted it and it´s fine. the car was running fine for the 500 miles but it just started doing this.

 

I had the exact same problems on my crx and it was the distributor.

 

x2, it could be your distributor timing, i had similar problem

 

Ok this is where I´m at. I noticed that the car is chocking out. That´s why it bogs at low rpms. So i called my dad and he told me to check if the temp sender was good cuz the ecu could be thinking the car was cold still and be sending a ton of fuel. I jumped the temp sender at the termostat housing and nothing happend, just the fan turned on. Then I jumped the temp sender under the dizzy and it looks like it solved the problem. Any ideas? could this really be it? thanks

 

just for future references

This turned out to be a temp sensor that goes under the dizzy. it was sending wrong reading to the ecu and the ecu was running on cold map thats why it was sputtering with a **** load of fuel. Thanks guys