roryss024

iTrader: (1)

hey all, figured its about time to sign up and make some post. well i have a 98 civic EX that had a y7 swap when i bought it, unfortunatly the timing went out and long story short i ended up swapping the head to a y8, everything went well and doesnt leak or anything, however now about 3 months later im trying to finish the mini me by swapping out the y7 ecu (p2e) with a y8 (p2p) ecu as well as doing the 3 to 2 iacv fix. i swapped in the p2p and also replaced the old TB (with attached IACV) out with the 1 from a 98 EX. the problem im having is when attempting to accelerate it stutters/bogs out making almost like a popping sound (seems to me kinda like its running too rich) til i play with the clutch and get the rpms up itll slowly drive but with almost no power. the specs are y7 block/y8 head/ skunk 2 IM, ebay header/catback exhaust. i dont have the problem when i plug the p2e ecu back in and switch the a14 back to a12 except a rapid idle at like 1450-1550rpms which i believe would be from the orange wire being d/c. any help would b appreciated, thanks

roryss024

iTrader: (1)

sorry forgot to mention, the only codes iv thrown from the p2p is p1259 (vtec system malfuntion) and code p0450 which autozone doesnt have in there database but for toyota/mitsubishi it points at evap. i heard it can be from a knock sensor but i never had a code for one, was also wandering if vtec malfuntion can be a culprit for this. so far iv cleaned the crud outta the iacv and tb ( carb cleaner, rag and qtips and toothpikes) checked the timings (which are fine) checked/cleaned map sensor and took the cover and inspected the p2p ecu. been a little skeptical at adjusting the TPS and wanted to check here first before i do. also iv tried swapping the old y7 TB back on and covering the hole inside it...it seems to act better and does rev up with just a little stutter. doesnt seem to have any air/vacc leaks.

roryss024

iTrader: (1)

Also the p2p ecu is fora MT, which is what i have...any have any advice on what might b causeing this?

hybridmiklo

p0450? Purge system? Just for the hell of it I would make sure the purge valve is not leaking by and causing a rich condition. Pull the hose off behind the purge valve while the car is running and check for vacuum. If there is a vacuum then replace the valve and that may be your culprit. but i do recall something about that issue on certain year and model ecus in the hybrid section about that code. Might want to read that as well.

roryss024

iTrader: (1)

Cool thanms for the response, ill look into that section when i get off work. im not sure but the i think reason the code p0450 is there is because with the y7 harness didn have the connector for evap canister was not hooked up, i have the connecter for it and plan on running wire to the ecu and 1 to ground. will b doing that when my vtec pressuee senser arrives though gotta do same with it

roryss024

iTrader: (1)

Ran the wires. hooked up sensor. ran the same, checked tps (good) and changed TB gasket which helpit some, drove it to autozone n code codes again...1 for knock sensor which im thinkin of ordering 1 from ebay for $10 instead of $75 for it. also still had p0450 for evap emission