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View Full Version : Ka-t starts then stumbles


silnismo
08-14-2009, 03:53 PM
Problem:
-Car starts perfectly everytime, then cuts after 5-10 secs of running.

Things you need to know:
-Car was sitting for about a year
-Very first attempt to start it after a year, it cranked and idled fine.
-Noticed there is an fuel leak somewhere (can't check i have a fucked up driveway)
-Compression tested the KA and got 210 across the board.

Things I've tryed already:
-changed new fuel filter
-drained most to all the old gas out and put in a gallon of fresh gas.
-checked injectors, flow was fine.
-Fuel pressure is good.

Items i installed before the problem:
-Changed valve cover gasket
-Changed coolant temp sensor
-Changed throttle position sensor
-Changed out KA spark plugs for newer SR spark plugs (They are the same, right?)
http://i164.photobucket.com/albums/u34/stanman18/IMG_3038.jpg
http://i164.photobucket.com/albums/u34/stanman18/tateng.jpg






***I know time is money, so if your advice/dianostic leads up to fixing my problem i will paypal them 10$. Its not much. but its somthing.***

roel03
08-14-2009, 04:11 PM
Connect your IACV to your coldpipe.

silnismo
08-15-2009, 04:13 PM
Come on guys, cash money for any1 that can figure this shit out.

essforteen
08-15-2009, 06:11 PM
set Your TPS to .5 volts at closed throttle

Ali 556
08-15-2009, 06:27 PM
ka-t.org...if there is something they will find it

silnismo
08-16-2009, 10:35 AM
set Your TPS to .5 volts at closed throttle

I was in the process of setting it, but people recommended the car should be warmed sufficiently before setting it. Would it matter if it wasn't warmed up since i can't get my car running more then 10 secs?

s13silvia123
08-16-2009, 10:57 AM
check if your cat is clogged if you have one. this causes problems after long period of time that you have started up your car. all that old fuel clogged up the cat.

silnismo
08-16-2009, 12:31 PM
check if your cat is clogged if you have one. this causes problems after long period of time that you have started up your car. all that old fuel clogged up the cat.

Thats a good point, i did notice a decent amount of fuel spewing out of the exhaust when it did run.

Bigsyke
08-16-2009, 03:20 PM
^^^what? How does he have a cat with out the OE exhaust mani?

Your probably getting too much fuel, or your fuel pump isnt putting out enough.

did you check your fuel pressure?

If its been sitting for a year its an easy fix with a bottle of chevron techron.

I assume your lines have rotted and fuel pressure is down.

Dont start buying sensors when you know its not a sensor issue

silnismo
08-16-2009, 05:59 PM
Well, sensors were bought b/c it ran shitty at the time it did run. TPS & coolant sensors are very common to fail, and they were bought simply to freshen it up.

Problem occured after installing the new parts.

Fuel pressure was the first thing i checked and its good, i guess i should of stated in the 1st post.

S13silvia was referring to the catalatic converter btw....

silnismo
08-17-2009, 09:05 AM
Keep em coming, finally have time to work on it later today so i can check some of these suggestions out.

essforteen
08-17-2009, 02:37 PM
I was in the process of setting it, but people recommended the car should be warmed sufficiently before setting it. Would it matter if it wasn't warmed up since i can't get my car running more then 10 secs?

ive always done it when the car was cold no problems!!

Bigsyke
08-17-2009, 02:42 PM
^^^i think the FSM states you have to wait untill coolant is below * 203f, which is warmed up, just after coolant fan relay1 trips.

redpotatoes
08-17-2009, 05:21 PM
210 on all 4 cylinders?!
OEM spec is 179psi.

Why your IACV is on your hotside?
Why do you have a vaccum going to your hotside?

When you built your setup, have you cancelled your EGR? Have you installed a block off plate?