KA throwing code 21 and not idling

Information on the naturally-aspirated KA24E and KA24DE engines.
Kakid240
Posts: 11
Joined: Wed Nov 25, 2009 6:33 pm

Post

well i blew my headgasket and put on a new one so i put the car back together. The car starts but it wont idle it just shuts of when i start it. I checked the codes on the ecu and code 21 is coming up i cam confuse because the car starts that means it is getting the voltage it needs??? i am puzzled on why my car just shuts of when i turn it on and why it has code 21 if the car starts PLEASE some one help me


Kakid240
Posts: 11
Joined: Wed Nov 25, 2009 6:33 pm

Post

i checked codes again and it is throwing 55 which means nothing wrong but my car still wont idle so i turned the car on and held the gas at WOT the car like had to wait a while to catch itself and then it stumbled and went to about 3500 rpm and then shut itself off!!! wtf could it be

rioredstang
Posts: 293
Joined: Sun Nov 30, 2008 3:47 pm
Car: 1993 240sx SCCA ITS
Location: Chattanooga, TN

Post

Can you keep it running or will it just die? Could be a fuel pump problem. Maybe shutting off relay after starting. Check fuel pump relay. I think a 21 was no ign signal. Make sure no leaks to MAF. Check timing.


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