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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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02-26-2010, 12:21 PM | #1 |
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ka24de bogging at half to full throttle
this is what i have checked.......
changed the spark plugs checked all grounds unhooked MAF and it ran like shit checked for vacuum leaks the only thing i haven't changed is the wires, cap and rotor. need some help cause this is driving me crazy
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02-26-2010, 07:08 PM | #2 |
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dude yes same thing is happing with me right now!
Like only when its cold to warm up is when its good. after warm up the idle jumps and sounds like its gonna die sometimes, plus when i apply gas it bogs out. I replaced my spark plugs, maf, spark plug wires, distrubter, checked for vac leaks, new rear o2 sensor... idk man. what to got up ur sleve? |
02-26-2010, 07:14 PM | #3 |
Zilvia FREAK!
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knock sensor
~mario
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02-26-2010, 09:55 PM | #4 |
Zilvia FREAK!
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i'd check the tps real fast with a multimeter. the middle white wire should be around .5 volts with the throttle closed and the key on (of course so it gets power), and around 4. volts with the throttle wide open. the voltage should increase as you slowly open it without any dead spots.
very easy test. Dave
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02-26-2010, 11:21 PM | #5 |
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i might need a new fuel pump. i have the same exact problem with my sr and i have checked all the things listed above except the knock sensor, i dont even know what that is, but i just bought a walbro 255 fuel pump. ill let u know whats up when after i install it.
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02-27-2010, 11:39 AM | #9 |
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no it starts out fine, but when i get over half throttle it acts like its skipping and sounds like it is hitting on 3 cylinders.....a big loss in power. but i can drive it easy and it does fine. idle is a little rough, but doesn't die out. it was sounding like it was hitting on 3 cylinders all the time before i changed the spark plugs, now like i said its just after half throttle
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02-28-2010, 06:58 PM | #12 |
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Honestly I dont even know why you're posting a thread when you havent even checked the basics.
- TPS - Fuel Pressure - Timing - Spark - Vacuum system (you need to use a smoke machine type tester) - Temp sensors and other sensors - Spark plugs
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03-04-2010, 09:43 AM | #16 | |
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Quote:
Voltage should be .5V and steadily increase as the throttle is slowly opened. |
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bogging, half throttle, help me, ka24de |
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