horribly bad idle, recent ls/vtec install
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horribly bad idle, recent ls/vtec install
My motor seems to be searching for idle, after a recent ls/vtec install. runs very high, ~3k-5k. I've had the computer chipped for the motor, it was throwing a code 14 which I just fixed by taking off the IAC and cleaning it out. Now it's not throwing any codes and the searching idle is more severe than when the IAC was dirty. was only ~1.3k-2k before with the dirty IAC. i'm using the TPS/TB off of the LS motor in perfect working condition. i may possibly have ail in my coolant, since my lower rad hose doesn't seem to fill up with water when the coolant system is pressurized. Any ideas? im a little scared, as it seems my coolant is getting a slight milky-ness too it
my mom loves to give me **** about fixing things that aren't broken
OBD-1 EJ1 Coupe
B18B Block
B18C1 Head/Cams/IM
using the LS TB/TPS/EVAP
my mom loves to give me **** about fixing things that aren't broken
OBD-1 EJ1 Coupe
B18B Block
B18C1 Head/Cams/IM
using the LS TB/TPS/EVAP
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Re: horribly bad idle, recent ls/vtec install (Tatakai)
Check and see if you have a huge vacuum leak.
Did you check the FITV?
https://honda-tech.com/zerothread?id=699787
Did you check the FITV?
https://honda-tech.com/zerothread?id=699787
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Re: horribly bad idle, recent ls/vtec install (ek forever guy)
no vacuum leaks, and i took off the fitv because i'm not running coolant through the TB
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Re: horribly bad idle, recent ls/vtec install (Tatakai)
milky coolant would indicate oil getting into it , i hate to tell you that. if its revving that high at idle its probably vacuum leak or tuning issues. you could perhaps , open ecu , disconnect J1 jumper , try idling the engine with stock fuel map. should be ok for idle , good enough eliminate your eeprom as the issue. an idea anyways.
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Re: horribly bad idle, recent ls/vtec install (Tatakai)
5k idle u have a vaccum leak end of question or a fucked up throttle body or wrong gaskets
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Re: horribly bad idle, recent ls/vtec install (blackKready)
yea before i got the chip burned i was just starting it with a LS map, just for the sake of checking for leaks and stuff, and it had that idle problem then too. and i tried using the LS TB and the GSR TB and both have the problem.
an interesting note- from the TB on the filter side, there is a good amount of suction like normal (my palm can get sucked in), but from the brake booster port it feels like there is next to no vacuum at all. i think i'll try replacing the TB gasket, cuz i know the old LS one is fairly fresh, and the GSR one that's on there now is somewhat beaten i would be driving it with this shitty idle, but the brakes do not work, which led me to check the brake booster.
an interesting note- from the TB on the filter side, there is a good amount of suction like normal (my palm can get sucked in), but from the brake booster port it feels like there is next to no vacuum at all. i think i'll try replacing the TB gasket, cuz i know the old LS one is fairly fresh, and the GSR one that's on there now is somewhat beaten i would be driving it with this shitty idle, but the brakes do not work, which led me to check the brake booster.
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Re: horribly bad idle, recent ls/vtec install (Tatakai)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tatakai »</TD></TR><TR><TD CLASS="quote">yea before i got the chip burned i was just starting it with a LS map, just for the sake of checking for leaks and stuff, and it had that idle problem then too. and i tried using the LS TB and the GSR TB and both have the problem.
an interesting note- from the TB on the filter side, there is a good amount of suction like normal (my palm can get sucked in), but from the brake booster port it feels like there is next to no vacuum at all. i think i'll try replacing the TB gasket, cuz i know the old LS one is fairly fresh, and the GSR one that's on there now is somewhat beaten i would be driving it with this shitty idle, but the brakes do not work, which led me to check the brake booster.</TD></TR></TABLE>
your brakes don't work did u put the check valve in backwards and take some carb cleaner and spray it around the intake manifold to check for a leak
an interesting note- from the TB on the filter side, there is a good amount of suction like normal (my palm can get sucked in), but from the brake booster port it feels like there is next to no vacuum at all. i think i'll try replacing the TB gasket, cuz i know the old LS one is fairly fresh, and the GSR one that's on there now is somewhat beaten i would be driving it with this shitty idle, but the brakes do not work, which led me to check the brake booster.</TD></TR></TABLE>
your brakes don't work did u put the check valve in backwards and take some carb cleaner and spray it around the intake manifold to check for a leak
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Re: horribly bad idle, recent ls/vtec install (street dreams)
where's the check valve at? the IM i have came complete with sensors and TB when I got the head with it.
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Re: horribly bad idle, recent ls/vtec install (blackKready)
of course, lol. that was the port i tested when i noticed the brakes weren't working. a lot less vacuum pressure (or, i guess lack there of) than at the throttlebody on the filter side of it
#13
Re: horribly bad idle, recent ls/vtec install (Tatakai)
i had a similar problem except my idle would randomly jump to 6k rpm and i just brought my japanese buddy to tune the car and it been idling at 1.5k since.....
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