car is a 98 5spd.
blew my 2.5, swapped in a 96 2.2 w/ 160k. have been driving on this motor for just over 6k miles. been getting p0420 code a few times monthly since i've owned the car (16k miles).. never smelled the cats.
car idles low at all temps, and stumbles/misses a bit. no cels. slight hesitation at slight throttle around 2k if i am lugging it a bit. (has done this since the swap, the idle issue is new)
i now average 22mpg (which is also my best), which seems low to me, considering i averaged 26 with the 2.5, with a best of 29. is this just due to the power decrease, or related to the idle/hesitation?
new parts:
air filter
fuel filter
pcv valve
front o2 sensor
plugs (properly gapped, proper ngks)
plug wires (not oem, never had issues in the past using aftermarket wires, but read others have had issues)
new tbelt, etc. (rechecked timing!)
checked many times for vac leaks.
seafoamed through brake booster line (first time trying it, never been a believer in this stuff, still am not)
swapped knock sensor from 2.5 (changed plug)
swapped cam/crank sensors from my 2.5
i had been getting all 4 cylinder misfire codes at 5000 miles into the swap, which started immediately after the fuel filter change, and went away after redoing the timing/swapping cam/crank sensors. the car drove fine and did not miss, and the idle problem did not go away when the codes stopped coming.
today i will be cleaning the IACV/TB, and MAF. i just wanted to see what ideas people had. i have searched extensively, but only found one thread specific to these issues on a swap.
blew my 2.5, swapped in a 96 2.2 w/ 160k. have been driving on this motor for just over 6k miles. been getting p0420 code a few times monthly since i've owned the car (16k miles).. never smelled the cats.
car idles low at all temps, and stumbles/misses a bit. no cels. slight hesitation at slight throttle around 2k if i am lugging it a bit. (has done this since the swap, the idle issue is new)
i now average 22mpg (which is also my best), which seems low to me, considering i averaged 26 with the 2.5, with a best of 29. is this just due to the power decrease, or related to the idle/hesitation?
new parts:
air filter
fuel filter
pcv valve
front o2 sensor
plugs (properly gapped, proper ngks)
plug wires (not oem, never had issues in the past using aftermarket wires, but read others have had issues)
new tbelt, etc. (rechecked timing!)
checked many times for vac leaks.
seafoamed through brake booster line (first time trying it, never been a believer in this stuff, still am not)
swapped knock sensor from 2.5 (changed plug)
swapped cam/crank sensors from my 2.5
i had been getting all 4 cylinder misfire codes at 5000 miles into the swap, which started immediately after the fuel filter change, and went away after redoing the timing/swapping cam/crank sensors. the car drove fine and did not miss, and the idle problem did not go away when the codes stopped coming.
today i will be cleaning the IACV/TB, and MAF. i just wanted to see what ideas people had. i have searched extensively, but only found one thread specific to these issues on a swap.