My 240 is running poorly, possible sensor? HELP

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King Chilie
Posts: 46
Joined: Sat Feb 12, 2011 7:53 pm
Car: 240sx, S13, 1993
Monte Carlo SS, 1985
Chevelle SS, 1968
Location: Olathe, KS
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Well let me break it down, im new to the nissan world, i've tried searching for answers, but if i am repeating already answered questions, please kindly point me in the right direction. I just recently purchased an S13 coupe, KA24DE, she ran fine when i got her, she started acting up one day after i took her to the car wash and hasn't got any better. The symptoms are; poor idle, when i go full throttle she bogs and slowly increases in rpm's, but if i hold the throttle 1/4 way it'll sputter and run up the rpm's a little faster. I did run my ecu for codes, got a code 12 (air velocity sensor) so i changed the MAF sensor, didn't help :confused: . I just want some help before i throw more money at someting that doesn't need replaced. I am mechanically inclined, but i haven't worked on any cars with computers :gotme , and now im remembering why, haha jk, but im trying to learn so bear with me. The reason i got this car is because my friend has one, and after i drove his i new i had to have one :chuckle: , so much fun to drive....when they're running right! So one nissan lover to another, please help me!


compactfean
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Car: 89 240sx s13 sr gt3071r 23psi
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Take some sensor cleaner to the iat sensor. Also I would check wires and plugs.

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King Chilie
Posts: 46
Joined: Sat Feb 12, 2011 7:53 pm
Car: 240sx, S13, 1993
Monte Carlo SS, 1985
Chevelle SS, 1968
Location: Olathe, KS
Contact:

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I'm gonna run a compression test while I'm at it.

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King Chilie
Posts: 46
Joined: Sat Feb 12, 2011 7:53 pm
Car: 240sx, S13, 1993
Monte Carlo SS, 1985
Chevelle SS, 1968
Location: Olathe, KS
Contact:

Post

Ok, fixed one problem, apparently whoever owned it last didn't tighten the spark plugs very well hence causing some blowby, so for safe measure i replaced the plugs and now no more sputter :biggrin: , but it still bogs when i put my foot to the floor :confused: , so maybe tps sensor, maybe iat? Gonna check them today.

User avatar
King Chilie
Posts: 46
Joined: Sat Feb 12, 2011 7:53 pm
Car: 240sx, S13, 1993
Monte Carlo SS, 1985
Chevelle SS, 1968
Location: Olathe, KS
Contact:

Post

Well, simpler than what i thought i could've been. Number two spark plug wire was shot, got a new set coming in monday or tuesday. But were all fixed up for the most part!


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