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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 03-24-2019, 07:09 PM   #1
EF_jaycee
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s13 dies when ignition switch buzz comes

Car is a 90 s13 ka24de swapped. This started to happen after I removed the scv from the intake manifold. What happens is when I crank the engine over it starts and runs ok for about 3 seconds then a buzz from the ignition switch comes on and the engines dies out. Also for some reason when I put the intake mani back on, I found two grounds coming from the injector part of the harness that happens not be shown in any of the diagrams I can find online. The CEL also doesnt flash when it indicates its priming.
list of stuff of how I have the hoses ran:
vacuum hose fed from back of manifold to fpr
throttle body vacuum line capped off
hose from iac goes directly to intake tube, pcv from valve cover has a filter on it
there is a plate where the scv used to be
no other emissions equipment on car
another thing is when I try to floor the car too keep it running it does not rev up, it just hesitates and dies. maf sensor seems to work fine on a friends coupe. I also swapped over his blue egi relays and same thing. It runs a little longer with the maf unplugged but it still dies after about 10 or15 secs

Last edited by EF_jaycee; 03-24-2019 at 07:20 PM.. Reason: not enough details
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Old 03-24-2019, 07:22 PM   #2
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any help is appreciated thanks again
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Old 03-24-2019, 10:58 PM   #3
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also i never plugged the runner holes just capped the hole where the rods pops through
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Old 03-25-2019, 08:27 AM   #4
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did you connect those grounds back on? check for fuel spark and airflow...if any are hindered it could cause this...
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Old 03-25-2019, 08:31 PM   #5
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connected both grounds on intake mani, its getting fuel and spark. I'm starting to be almost sure its a vacuum leak because I didnt plug up the scv rod holes when I removed them. they are probably causing a massive vacuum leak. I saw the offbeat garage emissions delete guide on youtube and he didnt fill his scv holes with anything.
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Old 04-06-2019, 05:47 PM   #6
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fixed. It was low on gas and the fuel filter was clogged. Thanks yall.
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