1995 LS400 low idle in gear
#1
7th Gear
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1995 LS400 low idle in gear
Car runs great no stutter or vibrations but when at a stop light in gear it drops all the way down to around 2-400 rpm.
Recently repaired my ecu with new japanese caps which fixed major problems so that is out of the question .
Gonna start by checking throttle body and TPS , maybe IACV?
Heard this is a common issue, can anybody give me some ideas . Thanks.
Recently repaired my ecu with new japanese caps which fixed major problems so that is out of the question .
Gonna start by checking throttle body and TPS , maybe IACV?
Heard this is a common issue, can anybody give me some ideas . Thanks.
#2
Those are good places to start, IACV in particular. Not just checking, but cleaning. Is the transmission fluid healthy? Air filter healthy?
#3
I'm having a similar issue, will follow this thread as I may have a similar outcome. My issue is just when ECT Power is turned on I get the low idle and stalling. When it's off idle is normal and no stalling. 93 SC400.
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#5
My LS developed an erratic low idle that quickly became stalling a few months back. After that it started dumping raw fuel into the motor and causing a number of problems. It ended up being a bad capacitor in the ECU. It runs great now other than a slightly low idle when the AC is off . It’s always a safe bet to check the ecu before replacing 20 parts like I did. Those SC’s are a sweet *** car I’m jealous.
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