Hey guys, need some help. My 92 LX runs horribly when its cold, but perfectly when its warm (this is an issue, because I need to be at work at 6a, and it is bad, but when I get home at 6p in the heat, its perfect). I have gone through the surging idle checklist, but the problem still exists. Here's its story:
My ECM failed last month - sent it off and had leaky caps replaced. Ran good for a couple of weeks after installing the rebuilt ECM. Then it started stalling right after starting it. I heard a bad rattle from the smog pump (bearings went bad), so I replaced it. Got some smog-related codes, so I went through the vacuum hoses and replaced a bunch of old and worn rubber. Cleaned IAC, set TPS, no dice. Replaced IAC, replaced ECT and ACT, checked timing (12 degrees), reset base timing, reset TPS (0.97), no dice. Checked 10-pin connectors, all looks good. It is stupid rich in the morning, and idles rich in the afternoon heat.
Alternator runs at 13.2V at idle, which sounds low to me. I ordered a stock crank pulley to replace the underdrive and will install it this weekend.
KOEO gave me my 11. KEOR kicked a 94 and 44. I intend to replace the diverter and check the thermactor tubes for clogs, but I'd like to get it running well first.
What am I missing?
My ECM failed last month - sent it off and had leaky caps replaced. Ran good for a couple of weeks after installing the rebuilt ECM. Then it started stalling right after starting it. I heard a bad rattle from the smog pump (bearings went bad), so I replaced it. Got some smog-related codes, so I went through the vacuum hoses and replaced a bunch of old and worn rubber. Cleaned IAC, set TPS, no dice. Replaced IAC, replaced ECT and ACT, checked timing (12 degrees), reset base timing, reset TPS (0.97), no dice. Checked 10-pin connectors, all looks good. It is stupid rich in the morning, and idles rich in the afternoon heat.
Alternator runs at 13.2V at idle, which sounds low to me. I ordered a stock crank pulley to replace the underdrive and will install it this weekend.
KOEO gave me my 11. KEOR kicked a 94 and 44. I intend to replace the diverter and check the thermactor tubes for clogs, but I'd like to get it running well first.
What am I missing?