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i just bought some cold air intake piping and a mas adaptor but my car keeps stalling when i come to a stop or put it in neutral or even if i let the rpms come all the way down when i shift it will cut off and when it does stay running it idles really low this really bugs me i cant figure it out
did you plug the sensor back in to the MAS!??!! i bet tahts why. lol
no it is plugged in with out it plugged in it just idles really high but when i plug it in i idles really low or cuts off
My suggestion would be to.. Put the stock intake back on. If that gets rid of the problem.. then there is something wrong with the one you put on. Good luck!!!
maybe the sensor got dirty when you took it out. When other people have problems with stalling cleaning the sensor usually takes care of it. Clean it and plug it in.
unplug the sensor, and disconnect the negative to your battery for a few minutes, reconnect the sensor and then reconnect your battery... turn your car on and drive for a few minutes regularly so the ECU can try to catch the new readings for AirFlow...
try that and see how it goes
ya reset the ecu
double check your connections. make sure everything is tight, secure and put on correctly.
Weired...like what Quicksilver said, I would of assumed the MAS wasn't plugged in.
1. Make sure the MAS plug if secure
2. Reset the ECU (Unplug BOTH the negative and positive for about 10mins)
Shadow made a good point if the problem still occurs...reinstall the stock intake. If the problem is fixed..then its something with the CAI. If it isn't fixed..then it could be a bad MAS (Could of suddenly took a crap) or maybe you just need to clean the throttle body & intake manifold.
i found the source of this problem ..... when my fan turns on and blows hot air on my intake the car stalls so my guess is cold air intakes dont like hot air
WRONG!
its something else
<div class='quotetop'>QUOTE(fastmgalant97)</div><div class='quotemain'>i found the source of this problem ..... when my fan turns on and blows hot air on my intake the car stalls so my guess is cold air intakes dont like hot air</div>
haha......hahahaha.........hahahahahahahahahahahah aha
:???: I dunno man..unless you are sucking in actual fire, hot air won't make a car stall.Quote:
Originally Posted by fastmgalant97
Are you nutso Hot Air=Stall is Wrong.
Im sorry but I laughed too.Quote:
Originally Posted by fastmgalant97
im still laughing................................. Dude try to reset the ecu again and make sure the MAS is hooked up and there are no loose hoses.
problem fixed once i moved the intake away from the fan it doesnt stall nemore
so keep on laughin boys
i'm sorry man but the fan wasn't the problem,Quote:
Originally Posted by fastmgalant97
do you realize how hot it gets in there?
yor ecu is more than equipped for yoru car to drive as smooth as butter and it be 130* outside.
that could translate to some serious underhood temps,
the car still wouldn't stall because of it.
my guess is you had a post mas air leak, and when you moved whatever you moved, it fixed the leak.
i agree with you DOHC
well i guess ur right bc its doin it again i duno what the hell to do im trin to get this thing runnin right so i can post some pics and some footage fo my distributor dohc but im having all kinds of problems now
maybe check your o2 sensors??? are you throwing a code of some sort!?
Is this problem occuring after you installed the DOHC head or before?
LOLOL, Dude i think you got a vacuum leak or some shit. I dont know what you did or what you touched but installing a cold air shouldnt give you so much problems especially something serious like stalling.
ok here is the deal,Quote:
Originally Posted by fastmgalant97
first off,
did you check your compression after your headswap?
second,
when you put the 4g63 head on the 4g64 block(even if you use the 4g64 dohc timing belt)
the timing will be off.
the reason is that the deck on the 4g64 is taller than the deck on the 4g63,
and thus the cam gears are indexed differently.
you if you didn't index yoru cam gears properly, then your head is now running "out of time".
cam timing not being dead on could cause small idleing problems or poor vacuum etc. its not a big enough difference between the 4g64 and 4g63 to put your valves in danger, but nonetheless the issue needs to be addressed.(if it hasn't been already)
ok,
so here is what I think it actually is.
did you use all new throttle body gaskets, and intkae manifold gaskets when you installed the head? (hopefully you used a new exhaust manifold gasket so you aren't leaking out power)
but if any of those places have leaks(on the intake side) it will cause your car to run rough, and possibly die when the load changes(like when your fans or a/c comes on)
second,
the seals where the injectors seat into the head: these can bind, or pinch when you are installing the injectors/fuel rail, also.... they age over time and can be a bigtime vacuum leak.
third,
you used the 1g throttle body correct?
is your idle set correctly?
if its low, then when the fans come on or the a/c compressor kicks in... the engine can sputter, or stall.
so try adjusting your idle
those are your most likely culprits.
get a intake leak tester and work it out.
and by all means,
please don't hesitate to show us pictures, even before you get it worked out.
OH!!, i didnt know you did a head swap. Man your timing is way off..........get a timing gun.
Quote:
Originally Posted by DOHCstunr
I dont have a 7g
But this is why im in TGC
:wow:
Quote:
Originally Posted by bronxbombr
yup have everything tight and in the right position.. pain in the ass but it's the price to pay of having CAI..
timing is fine, im not that stupid.... gaskets are brand new , idel is fine untill the fan cuts on and then its all downhill from there, i have no a/c (took it out) im throwing out a code PO1500 intermidiate speed sensor i think this is because i have a bad front roll stopper mount, everything is practically brand new and intalled correctly it just when it gets warm and the fans cut on it sputters and dies ne one have ne suggestions that i already havent thought about thanx for the help guys
somthing else is when i took the cover off the fuse box under the hood the ALT/CHOKE relay was HOT!!!! it about burn the hell outta my finger now im pretty sure its not supposed to be hot like that ne know y it could be so hot
no one was saying you are stupid.
i was just saying its pretty damn easy to miss that step.
the part numbers for the 4g64dohc and the 4g63dohc cam gears are totally different.
so if your timing marks aren't compensated for correctly, then its going to have effects.
are you using your galant IAC or the IAC from the eclipse throttle body?
i woudl definatly do a intake leak test just to rule out anything there.
but if your idle air controller isn't operating properly, then it could cause problems such as this.
what idle rpm are you at right now(with the coolant up to temperature and the rpms stable)(before the fans kick in)?
also, did you hook up a timing light and check your base ignition timing?
since you moved the distributor over,
you definatly need to(if you haven't allready) set the base ignition timing.
its easy just go borrow a gun from autozone.
ignition timing can effect your base idle speed.
forgot to ask, what plugs are you running and at what gap?
btw(its been asked a few times)
what model year is your galant?
if its a 96-98, you ought to get a datalogger. all you need is a cheap ebay palm pilot, and a 5 dollar cable. and you can log and monitor all of your engine metrics, plus scan codes, test solenoids, injectors etc.
the software is free.
can we get some pics allready. lol
are all your grounds secure?
im idling at 750 dead even until the fans kick in ive done the leak detector ive got the timing light those are all things i did when i started her up the first time with the 4g63 head on it ive got the eclipse throttle body with the 1g IAC look its got to be sumthing simple bc it worked fine when i started it up the first couple times without the cold air, when i got the cold air intake on it. it started to act like this
do u guys use the hose for ur filter that comes out of the valve cover or do u just use a breather filter
well the breather is supposed to draw in metered air.Quote:
Originally Posted by fastmgalant97
it gets inhaled through the pcv into the engine.
if your breather line isn't inhaling air that the mas has already metered(like it woudl if you have a nipple on your intake, or in the factory hose diagram)
then it will screw with the a/f ratio and effect yoru tune..
but not so much that it woudl cause these problems..
unless the pcv valve is stuck open or soemthign odd like that.
what mas adaptor are you using? is there a clean seal in between the mas and the adaptor?
alot of the adaptors out there are poorly machined.
did you remove yoru honeycombs or anythign on your mas?
ok lets see,
my factory catalyst for my original 2.4 dohc "GS" motor says:
curb idle (all accessories turned off w/o fans running) 800
base timing is(at curb idle with ignition timing adjustment terminal grounded)
5* btdc
the plug gap is .039-.043
perhaps you should try upping your base idle to 800-850.