Nissan 300zx 2+2 na, acceleration problems

Dana Brailsford

Asked by Nov 04, 2013 at 04:37 PM about the 1990 Nissan 300ZX 2 Dr 2+2 Hatchback

Question type: Maintenance & Repair

I need to chnge my O2 sensors and my knock sensor along with my catalytic converter
for my nissan 300zx 2+2 na. Does anybody have any ideas how to do this?

5 Answers

Dana Brailsford

I have already adjusted the tps and it works fine. I also adjusted the cam phaser and it helped a little bit but it still doesn't actually solve the problem just mask it

yes price these items which you need and have a mechanic install them...this is boilerplate work and really warrants NO explanation~ I suspect the TPS is faulty~ Catalytic converter....why? did someone put leaded gas in there? it was run under a RICH know that if combustion is correct these things will "burn" off excess I question the need for replacement of the Catalytic converter....02 sensors, yes, well the computer is under the influence of an undervoltage condition and has you runnin' around replacin' stuff because it's been issued a diet of marginal operating voltages...because the ground needs to be wirebrushed clean to establish SOLID power to the grab a coarse wirebrush undo the 1/0 black battery cable and wirebrush the spot where the cable attaches and the cable...get a NEW battery...and clear the codes with an handheld device~

Best Answer
Dana Brailsford

Oh and I burn gas like crazy, I get maybe seven mpg if thats any help...

1 out of 1 people think this is helpful.

It's clobberin' up the might check the IAT intake air temp sensor as this little goodie is responsible for determining the ambient conditions at the intake plenum...combined with the BLOCK temperature sensor gets a take on the situation and puts the right air/fuel combination out there for the prevailing condition (be it hot or cold)...but as you've awarded 20 for telling you know this already, the computer needs to see a 12 volt offering ....Grounded properly else will suffer from "brownout" which throws the CEL...tho if your IAT is bad....

1 out of 1 people think this is helpful.

your problem is probably nat a cheap fix. The left cylinder head is probably bad which in turn messed up the cam phazer. The fix is a new head and phazer and that is not cheap. Nissan should have recalled the car. it is their fault.

Your Answer

Add photo

Related Questions

  • My 1991 300ZX NA won't start 11 answers

    My car won't start, when I turn on the key the dash lights up and radio/cd work, but it won't crank. It was running and starting fine the other day, but after I shut it down, no more. I checked the ba...

    1991 Nissan 300ZX 2 Dr 2+2 Hatchback


    Maintenance & Repair

  • 87 z31 NA , possible clutch problem 1 answer

    I have a na 87 z31, clutch works to start car but won't engage when in gear.. Would i have to replace my whole clutch assembly or would it just be something worse?

    1987 Nissan 300ZX 2 Dr GS


    Maintenance & Repair

  • 1990 Nissan 300zx 4 answers

    I have my Nissan and the computer says it has one faulty o2 sensor and one that is only half working and the knock sensor is completely bad. My Nissan has almost no acceleration until about 3.5k rm...

    1990 Nissan 300ZX 2 Dr 2+2 Hatchback


    Maintenance & Repair

  • My Nissan 300zx has no acceleration even with the pedal to the floor. 6 answers

    I get no acceleration even when my Nissan is warmed up. It's dangerous to drive and I've almost been hit multiple times trying to turn. What do I do?

    1990 Nissan 300ZX 2 Dr GS Hatchback


    Maintenance & Repair

  • my 300zx dosnt want to accelerate 11 answers

    My 300zx dosnt want to accelerate. When I put it in first gear and start to drive it lags and dosnt wana pick up speed fast enough. plzz help!! that would be much appreciated thanks

    1990 Nissan 300ZX 2 Dr 2+2 Hatchback




Looking for a Used 300ZX in your area?

CarGurus has 159 nationwide 300ZX listings and the tools to find you a great deal.


Search Nissan 300ZX Questions

Nissan 300ZX Experts

#1 Tom Demyan
Tom Demyan
Reputation 430
#2 Jamie Staples
Jamie Staples
Reputation 280
#3 dandyoun
Reputation 220
View All

Related Models For Sale

Used Nissan 240SX"
20 listings
Used Toyota Supra"
53 listings starting at $36,995
Used Ford Mustang"
724 Great Deals out of 41,220 listings starting at $900
Used BMW M3"
84 Great Deals out of 1,857 listings starting at $5,495
Used Chevrolet Camaro"
810 Great Deals out of 39,038 listings starting at $2,650
Used Chevrolet Corvette"
425 Great Deals out of 20,185 listings starting at $3,688
Used BMW 3 Series"
1,568 Great Deals out of 39,713 listings starting at $1,500
Used Mitsubishi 3000GT"
106 listings starting at $2,300
Used Mazda RX-7"
59 listings