low revs
#1
Driver School Candidate
Thread Starter
low revs
my 97 ls400 revs low when i approach a light or have to slow down, the revs go so low almost to the zero then before it stalls it shoots up again, i just wanna knw whats going on, and why it does that, the check engine light was on so i put the computer on it and the code was for the egr valve, i got a new one and it still does the same thing, i was thinking its the spark plugs but I'm not sure
Last edited by lexusrolex; 05-26-14 at 11:00 PM.
#6
Driver School Candidate
Thread Starter
so today i cleaned the throttle body and it was filthy!!!! it was so bad i cleaned out the whole intake manifold and it was filthy, so i put every thing back on and it still does the same thing, now the next thing I'm going to do is the spark plugs, wires , cap and rotor, hopefully that fixes it, but if its not that then who knows what it cud be
#7
did you clear the EGR code? low revs is typical and usually a TB cleaning brings it back up. there is also an idle control valve that gets gunked up.
http://www.planetsoarer.com/IAC/iac.htm
referenced from:
https://www.clublexus.com/forums/per...rol-valve.html
http://www.planetsoarer.com/IAC/iac.htm
referenced from:
https://www.clublexus.com/forums/per...rol-valve.html
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#8
Driver School Candidate
Thread Starter
no i did not clear the code, and that part on ur link, thats the part i replaced for a new one, i did clean the throttle body, i also cleaned the whole intake manifold
#9
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https://www.facebook.com/photo.php?f...type=1&theater
so i cleaned all that and it still acts the same
so i cleaned all that and it still acts the same
Last edited by lexusrolex; 05-28-14 at 12:35 PM.
#12
so today i cleaned the throttle body and it was filthy!!!! it was so bad i cleaned out the whole intake manifold and it was filthy, so i put every thing back on and it still does the same thing, now the next thing I'm going to do is the spark plugs, wires , cap and rotor, hopefully that fixes it, but if its not that then who knows what it cud be
#13
Driver School Candidate
Thread Starter
lets say it comes back, what is another way i can solve the egr problem? my check engine light came one like 2 3 weeks ago so i checked the codes, it came up with 2, 1 was the egr, 2 was my catalytic converter, i checked the egr, it looked bad, so i ordered the part, by the time i got it in the mail, the check engine light had came off by it self, i took it to get it smogged and the code still came up even tho the check engine light was off, they did not erase the code, and i just put the new egr the day after
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Dennzo
GS - 2nd Gen (1998-2005)
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12-06-11 04:49 PM