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here's what i have done:
- cleaned throttle body
- checked TPS with DVM, OK - clicks at idle, etc.
- cleaned IAC and took it apart to make sure
- cleaned flame trap, oil separator box
- new intake accordion hose, no more holes
- new intake manifold gasket
- new injector seals
- injectors ultrasonically cleaned, new injector filters
- new dist. cap, rotor, wires, NGK's
- checked ign. timing with timing light
- brand new O2 sensor
- intellitronix A/F meter shows idle cycle 0.1V - 0.7V
- idles at 800-900 RPM according to volvo in-dash tach (too high already)
- messed with AMM, CO adjustment screw to no avail. checks out with LED for correct mixture
- have not yet found any vacuum leaks otherwise
at idle, my car kinda misses once every O2 sensor cycle or so. i think at the lean end of it (surprise, surprise). definitely a miss, you can feel it at the tailpipe when it happens. if i disconnect the O2 sensor, idle smooths out. i have not checked compression, but the car runs perfect, with plenty of power. never misses off idle. uses no oil. maybe these wires are crap. any ideas? anyone?
no, i don't think i have a group-A cam. my mom's '89 245 idles like it's not even there. is LH 2.2 just not that on top of things?
thanx for your help, guys
vytas
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