Help: Bogging, Low Idle, and Loss in power - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

kholistics23 · 12-13-2011, 02:25 PM

I was coming home from school when my car started bogging and shaking a lot. My usual idle is around 800, but now it dropped to like 500 or so. I was able to drive home from school still which was about 20 min away. Also, when i gas the car there is a hesitation in acceleration, but was still able to reach 4k. I was wondering if anyone could help me figure out what would cause my car to do this. Thank You!

its a 1990 240sx ka24e btw.

CTblack240 · 12-14-2011, 06:55 PM

does it almost feel like its ready to bog out and die? sounds like as vacuum leak to me

anarchyperf · 12-14-2011, 06:56 PM

Check your plugs and see if one of them is either covered in fuel or completely dry

kholistics23 · 12-17-2011, 09:00 PM

Quote:

Originally Posted by CTblack240

does it almost feel like its ready to bog out and die? sounds like as vacuum leak to me

its just bogging, it never drops less than 500 rpm. so idk if could be it. the rpm is pretty stable at 500.

kholistics23 · 12-17-2011, 09:02 PM

Quote:

Originally Posted by anarchyperf

Check your plugs and see if one of them is either covered in fuel or completely dry

The spark plugs are the only things ive checked so far and they dont look too bad yet.

rakooda · 12-17-2011, 09:10 PM

You can always try cleaning your maf? I had a similar problem once turned out my MAF wanted to just stop working. Lol.. maybe adjust the dizzy, but I don't think its the source of the problem but could be a fix? Iono.. I wouldn't adjust the dizzy unless you know what your doing though.

Butcher240sx · 01-04-2012, 12:35 AM

do an ijector drop test.

starplatnumm · 01-04-2012, 12:44 AM

Similar problem. The maf wiring was rubbed around the intake area. Rubbed area came exposed. Suggest u repair the maf harness. Also it can be stretched due to alot of tension.

Garage Life · 01-05-2012, 04:06 PM

first check the ecu for codes, that can set you off in the right direction. Sometimes it could be a loose engine harness ground near the top front cover by the upperintake manifold.

12-13-2011, 02:25 PM	#1
kholistics23 Join Date: Oct 2011 Location: West Covina Age: 28 Posts: 47 Trader Rating: (0) Feedback Score: 0 reviews	Help: Bogging, Low Idle, and Loss in power I was coming home from school when my car started bogging and shaking a lot. My usual idle is around 800, but now it dropped to like 500 or so. I was able to drive home from school still which was about 20 min away. Also, when i gas the car there is a hesitation in acceleration, but was still able to reach 4k. I was wondering if anyone could help me figure out what would cause my car to do this. Thank You! its a 1990 240sx ka24e btw.

12-14-2011, 06:56 PM	#3
anarchyperf Zilvia Member Join Date: Dec 2010 Location: Nazareth, Pa Age: 36 Posts: 194 Trader Rating: (1) Feedback Score: 1 reviews	Check your plugs and see if one of them is either covered in fuel or completely dry __________________ www.anarchyperformance.com - Your source for 240sx Performance! https://www.facebook.com/anarchyperformance - Like us on facebook Email: [email protected]

12-17-2011, 09:10 PM	#6
rakooda Zilvia Member Join Date: Mar 2007 Location: So Cal Posts: 190 Trader Rating: (12) Feedback Score: 12 reviews	You can always try cleaning your maf? I had a similar problem once turned out my MAF wanted to just stop working. Lol.. maybe adjust the dizzy, but I don't think its the source of the problem but could be a fix? Iono.. I wouldn't adjust the dizzy unless you know what your doing though. __________________ I'm kinda like herpes. You may lose track of me, but I'll always be around

01-04-2012, 12:35 AM	#7
Butcher240sx Zilvia Member Join Date: Oct 2010 Location: Houston Texas Age: 40 Posts: 157 Trader Rating: (0) Feedback Score: 0 reviews	do an ijector drop test. __________________ Don't Mess With Texas

01-05-2012, 04:06 PM	#9
Garage Life Leaky Injector Join Date: Dec 2011 Location: S. El Monte Posts: 127 Trader Rating: (2) Feedback Score: 2 reviews	first check the ecu for codes, that can set you off in the right direction. Sometimes it could be a loose engine harness ground near the top front cover by the upperintake manifold. __________________ www.itsgaragelife.com Engine Dyno Tuning - Fabrication - Adaptronics

12-14-2011, 06:55 PM	#2
CTblack240 Zilvia Addict Join Date: Aug 2010 Location: CT Age: 30 Posts: 823 Trader Rating: (6) Feedback Score: 6 reviews	does it almost feel like its ready to bog out and die? sounds like as vacuum leak to me

01-04-2012, 12:44 AM	#8
starplatnumm Leaky Injector Join Date: Apr 2010 Location: Los Angeles. CA Age: 36 Posts: 132 Trader Rating: (5) Feedback Score: 5 reviews	Similar problem. The maf wiring was rubbed around the intake area. Rubbed area came exposed. Suggest u repair the maf harness. Also it can be stretched due to alot of tension.

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