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CA18ET shutting off

Started by S12-AR · Mar 2, 2011 · 8postsSMF 2010–26

S12-ARMar 2, 2011, 11:28 pm · #1

So just got the engine running thnx to Jay whom sold me his AFM! Now that I was able to start up the car, when Im in idle it shuts off and it only does it when the engine is in idle. I can't figuere out what the problem is...help me guys please.


Post Merge: 11:29:16 PM / 02-Mar-11
Forgot its a 85 with original CA18ET Turbo
JonBMar 3, 2011, 12:07 am · #2

It's to vague. Your gonna have to do some work. Run a code. Pull a plug when it's not running and crank - check for spark. Gotta narrow it down some how.

Mine quits to. I know it's spark. That's all i know right now.

S12-ARMar 3, 2011, 6:44 am · #3

Ok guys so I checked for spark and its good(new wires, new plugs NGK Iridiums). I checked for fuel and the pressure is all good. Base timing is good and I also adjusted the timing with the timing gun to 15 degrees. The problem is when the engine is at idle, the RPMs slowly go down and eventually shuts off. Im going crazy trying to figuere out what it can possibly be. Can any of you guys please help!lol

sideways_s12Mar 3, 2011, 8:18 am · #4

Your welcome on the maf....is it all the time when it shuts off or just after it warms up is its after it warms up you have a faulty cts (coolant temp sensor). Also try to adjust your idle and check your pcv valve as well....

ProlowtoneMar 3, 2011, 9:20 am · #5

. i dono about this since my car runs without being plugged in, but shouldnt your idle up sensor prevent it from dieing? Try unplugging it and see if it helps your motor stay running.. i doubt it would do anything tho

Cajun1guyMar 3, 2011, 11:30 pm · #6

"The problem is when the engine is at idle, the RPMs slowly go down and eventually shuts off. "

What does the exhaust do when it slows? Is it getting smokey? If you catch it just before it shuts off, does it stumble a lot before it runs even again? If so, adjust the idle mixture on that device mounted above the radiator, back the air bleed screw out to lean the mixture. Also can check that the cold idle air  (IAA?) control is opening as the bimetal part heats up.

S12-ARMar 4, 2011, 12:22 am · #7

When it dies I can turn it back on right away.(As longs as i keep it above 1500 RPM its fine) I did adjust the mixture screw and it helps a little. When it starts to die theres no smoke out the tailpipe at all. It does this when its cold or when its at operating temp.

sideways_s12Mar 4, 2011, 2:25 am · #8

Hmm.....