Help!!!! detonation problem
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Help!!!! detonation problem
I have a 93 240sx that has bad detonation problem. I put in better gas and most of it is gone, but I can still hear a little every now and then. I built several 240's but never had this problem. any idea's ?
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Ignition:
Spark plugs - too cold?
Timing
Cap, Rotor, Wires
Fuel:
Filter: dirty?
Fuel Sock: dirty?
Fuel Pump: dying?
It's always the little things that get me...
Spark plugs - too cold?
Timing
Cap, Rotor, Wires
Fuel:
Filter: dirty?
Fuel Sock: dirty?
Fuel Pump: dying?
It's always the little things that get me...
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Originally posted by MaxType 240
Ignition:
Spark plugs - too cold?
Timing
Cap, Rotor, Wires
Fuel:
Filter: dirty?
Fuel Sock: dirty?
Fuel Pump: dying?
It's always the little things that get me...
Ignition:
Spark plugs - too cold?
Timing
Cap, Rotor, Wires
Fuel:
Filter: dirty?
Fuel Sock: dirty?
Fuel Pump: dying?
It's always the little things that get me...
too cold of a plug won't cause pre ignition or detonation, it will simply foul out when the car is cruising, because there won't be enough combustion heat to keep the plug at self cleaning temperature.
timing and carbon build up will probably both do it on a ka
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rest in peace tim.
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rest in peace tim.
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BG fuel system clean. on of the better tune ups you can buy for the money.
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If you have three quarters, four dimes, and four pennies, you have $1.19. You also have the largest amount of money in coins without being able to make change for a dollar.
If you have three quarters, four dimes, and four pennies, you have $1.19. You also have the largest amount of money in coins without being able to make change for a dollar.
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I'm willing to try anything @ this point, so far I've tried plugs, rotor, cap, fuel filter, timing... I'm starting to think it might be carbon build up...thanks guys
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Originally posted by Mattback
too cold of a plug won't cause pre ignition or detonation, it will simply foul out when the car is cruising, because there won't be enough combustion heat to keep the plug at self cleaning temperature.
timing and carbon build up will probably both do it on a ka
too cold of a plug won't cause pre ignition or detonation, it will simply foul out when the car is cruising, because there won't be enough combustion heat to keep the plug at self cleaning temperature.
timing and carbon build up will probably both do it on a ka
Anyways, clean the engine to eliminate hot spots (don't really think it'd be that bad but it's an idea).
Go over the fuel items and IACV suggestions first.
