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


Asked by MortalPlace 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

Not Active

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

Not Active

it is on the corner of the fuse box~

2 out of 2 people think this is helpful.
Not Active

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 134 nationwide 300ZX listings starting at $5,995.

Search Nissan 300ZX Questions

Nissan 300ZX Experts

#1 Tom Demyan
Tom Demyan
Reputation 380
#2 Jamie Staples
Jamie Staples
Reputation 250
#3 dandyoun
Reputation 220
View All

Related Models For Sale

Used Nissan 240SX"
17 listings
Used Ford Mustang"
657 Great Deals out of 42,225 listings starting at $1,500
Used Toyota Supra"
51 listings
Used Chevrolet Corvette"
261 Great Deals out of 14,737 listings starting at $3,999
Used Chevrolet Camaro"
452 Great Deals out of 26,429 listings starting at $2,950
Used Mazda RX-7"
50 listings
Used Mitsubishi 3000GT"
89 listings starting at $2,995