Lexus Troubleshooting Questions? Ask a Lexus Expert
with carb spary had it running with out seeing cat glow but I start the car then connect the pump to monitor reading on scantool after two min. you seem it running rich and see the cat glow- I've even previous diconnected exhaust a manifold think that had somthing to do it
high start up - high low idle - only goes lower/ normal with rpm are raced up
Sorry for the delay!
What is the o2 sensor reading when this happens?
can't keep engine running into closed loop to get readings- please let me know a few things discovered engine vacuum is fairly low - what could effect that compression is good and inspecs -- on a vaccuum gauge like 8 psi at say 1000 -1500 rpm and gauge flucates 8- 12 at high rpms 4000rpm -
dont hear or see any air/vacuum leak never mind major one so how do i narrow down to check ignition and valve timing
i didn't check the timing marks right now i did yesterday afternoon - but they did line up and also yesterday compression was avg 160 psi (Do you suggest I double check each of them today)
is it possible that the soleniod could be the whole problem cause it never idles properly at idle, so it wouldn't really be possible to activate the soleniod and determine engine roughness -- do they have a high failure rate is it worth trying -- or another way to test it
if i take it out - is thier anything that can slip or get screwed up by removing it cause it does work with timing. And can i tell by activating it what does it do, I honestly never tested one in the past
Well, its hard to say. It depends on how much slack there is. I would have to see it.
I am going to be off line for a few hours. I will check back with you shortly.