Wierd problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

pr240sx · 03-24-2006, 08:44 AM

As most of you guys know, I overheated my KA-T sometime ago, after that incident, compression went down (no more than 150 but no less that 140)
Car runs strong but when I accelerate at full throttle, stock crappy temp gauge goes berzerk (points toward "C") and engine sputters like a spark blowout.
I have checked my gap and is ok for 8 psi (gapped at 35) and plugs are fine.

Could the engine "loose" ground while accelerating, hence loosing spark? I will try running extra ground straps to check.

*MELLO*SOS* · 03-24-2006, 08:51 AM

The additional grounding can only help.
Have you checked/replaced your coolant sensor since the overheat?

pr240sx · 03-24-2006, 09:12 AM

Yep, sensor works fine outside the car and every other time that I am not accelerating.

03-24-2006, 08:44 AM	#1
pr240sx Zilvia Addict Join Date: Jan 2002 Posts: 627 Trader Rating: (0) Feedback Score: 0 reviews	Wierd problems As most of you guys know, I overheated my KA-T sometime ago, after that incident, compression went down (no more than 150 but no less that 140) Car runs strong but when I accelerate at full throttle, stock crappy temp gauge goes berzerk (points toward "C") and engine sputters like a spark blowout. I have checked my gap and is ok for 8 psi (gapped at 35) and plugs are fine. Could the engine "loose" ground while accelerating, hence loosing spark? I will try running extra ground straps to check.

03-24-2006, 08:51 AM	#2
MELLOSOS* LAID OUT Join Date: Mar 2004 Location: LAS VEGAS Age: 43 Posts: 2,015 Trader Rating: (1) Rides Gallery: MELLO*SOS Feedback Score: 1 reviews	The additional grounding can only help. Have you checked/replaced your coolant sensor since the overheat?

03-24-2006, 09:12 AM	#3
pr240sx Zilvia Addict Join Date: Jan 2002 Posts: 627 Trader Rating: (0) Feedback Score: 0 reviews	Yep, sensor works fine outside the car and every other time that I am not accelerating.