1990 300zx 2+2 car starts up but wont turn off. even with key in off position


Asked by Jun 18, 2013 at 08:11 PM about the 1990 Nissan 300ZX 2 Dr 2+2 Hatchback

Question type: Maintenance & Repair

I am also having a similar issue with mine. car starts and runs but when I put the key in the off position car stays running and all dash light stay on. if I pull the battery connection it resets itself and all lights are out until I turn the key to the on position.

I changed the starter relay but still has not resolved the issue. any other ideas would be helpful. thanks

4 Answers

The ignition coil relay, is what you changed? http://www.conceptzperformance.com/Cart/description.php? II=3422&Car_Type=NIS300&gclid=CLLb7Pbt7rcCFY1DMgodsX4AwA

it is on the corner of the fuse box~

2 out of 2 people think this is helpful.

no "mark helpful"....you mean I've been wastin' my time....if ever?~


Sounds like you are getting a feedback from your alternator, if a certain diode goes bad in the alternator it will feed power back trough the system and the engine will stay running even with the key off. Have your alternator checked.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used 300ZX in your area?

CarGurus has 162 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"
21 listings
Used Toyota Supra"
56 listings starting at $32,500
Used Ford Mustang"
721 Great Deals out of 41,403 listings starting at $900
Used BMW M3"
98 Great Deals out of 1,892 listings starting at $5,495
Used Chevrolet Camaro"
796 Great Deals out of 38,872 listings starting at $2,650
Used Chevrolet Corvette"
426 Great Deals out of 20,261 listings starting at $3,688
Used BMW 3 Series"
1,624 Great Deals out of 39,577 listings starting at $888
Used Mitsubishi 3000GT"
109 listings starting at $2,300
Used Mazda RX-7"
58 listings