ca18det running bad... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

da_grey_s13 · 01-15-2006, 12:38 AM

ok, about 2 months ago i replaced the clutch, test pipe, intercooler and piping on my ca18. it ran fine boosting 14psi and was fast as shit before i replaced this stuff. after putting that in, the car misfires under full throttle, like it has a clogged catalytic convertor, but will tach up fine to 6500 and make 14psi when done slowly. i thought my piping was too small on the cold side but we changed to bigger piping and is still does it.

I think it may be either the fuel filter, MAFS, ecu or timing.(none of which were tampered with during the above installs)

Also, the only factors that have changed since are the air temp, since it's about 30 degrees colder here since it ran good; and i think my old school hks BOV has a worn out spring now.

Someone please try to point me in the right direction on fixing this...

TheSnail · 01-15-2006, 03:34 AM

Take the sparkplugs in consideration. 3 out of 4 studering under load I have had were the sparkplugs, the other was the going well beyond the maf's capabilities.

boostin_sil80 · 01-15-2006, 12:52 PM

Quote:

Originally Posted by TheSnail

Take the sparkplugs in consideration. 3 out of 4 studering under load I have had were the sparkplugs, the other was the going well beyond the maf's capabilities.

we changed the plugs and it is still acting up. next, i guess we will check the mafs. does anyone know how to check that with a multimeter?

F3600 · 01-15-2006, 04:38 PM

did you check the code ?

boostin_sil80 · 01-15-2006, 04:39 PM

We changed the fuel filter and the problem was solved.

F3600 · 01-15-2006, 04:41 PM

good to hear !

01-15-2006, 12:38 AM	#1
da_grey_s13 Zilvia Junkie Join Date: Oct 2004 Location: New Orleans Age: 39 Posts: 301 Trader Rating: (3) Feedback Score: 3 reviews	ca18det running bad... ok, about 2 months ago i replaced the clutch, test pipe, intercooler and piping on my ca18. it ran fine boosting 14psi and was fast as shit before i replaced this stuff. after putting that in, the car misfires under full throttle, like it has a clogged catalytic convertor, but will tach up fine to 6500 and make 14psi when done slowly. i thought my piping was too small on the cold side but we changed to bigger piping and is still does it. I think it may be either the fuel filter, MAFS, ecu or timing.(none of which were tampered with during the above installs) Also, the only factors that have changed since are the air temp, since it's about 30 degrees colder here since it ran good; and i think my old school hks BOV has a worn out spring now. Someone please try to point me in the right direction on fixing this... __________________

01-15-2006, 03:34 AM	#2
TheSnail Nissanaholic! Join Date: Jan 2004 Location: Marietta Georgia Age: 42 Posts: 2,434 Trader Rating: (0) Feedback Score: 0 reviews	Take the sparkplugs in consideration. 3 out of 4 studering under load I have had were the sparkplugs, the other was the going well beyond the maf's capabilities. __________________

01-15-2006, 04:38 PM	#4
F3600 Zilvia Junkie Join Date: Apr 2002 Posts: 364 Trader Rating: (0) Feedback Score: 0 reviews	did you check the code ?

01-15-2006, 04:39 PM	#5
boostin_sil80 Join Date: Jul 2005 Location: Slidell, Louisiana Age: 38 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	We changed the fuel filter and the problem was solved.

01-15-2006, 04:41 PM	#6
F3600 Zilvia Junkie Join Date: Apr 2002 Posts: 364 Trader Rating: (0) Feedback Score: 0 reviews	good to hear !