So my Sirt-t monster Accord 1997 f20b/lsd 5 spd. tranny, with with obd2b ecu is acting out of place when it gets up to optimal temperture it will run fine and smooth when it is first started up once the key is turned, but after driving half a mile it starts to gag and spin freely not allowing me to accelerate or reach speeds in excess of 20mph it only slows when I gets warm no overheating, it happened ever since I stuck a splice into the service connecter and after am still unsure if that could of fried my ecu when It gets warm considering its not the obd2a? any input, as to why only when it gets warm, I have replaced the iat and still did not solve it. I just wanna get back to smoking 5.7 hemi pickups without needing to use vtec lol/but that one time it should of kicked on but still

 

No stored codes?

If not, then you have a "closed loop" issue....engine to normal op temp and the ecu goes into closed loop.

Again, no codes and a "drive issue in closed loop"....testing is needed, can you test the signal/data being given by the O2?

 

Is the engine rpms actually climbing? If so you have a clutch or transmission problem. If the engine rpms won't climb, then it is engine related.

 

I don't have an o2 sensor and it is engine related. I am near quit on Honda. With this money pit , i got this swap finished and was driving fine until i looped the service connector. I went on a test drive that night and tried to vtec on the u.s. 50 west when i approached 5k things started going to **** as i had a bad pcv valve oil from valve cover dizzy and dipstick blew my spark tube seals aswell. Got concourse replicas from ssr auto supply but it still was not running well with replaced wands wires cap n, rotor. So i wonder if its ecu related. B4 i timed it with light it was running shitty getting to temp but okayed when/ at higher speeds now its shitty all around