91 vg30

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
wrz32
Posts: 40
Joined: Sun Jul 04, 2010 11:51 am
Car: 1991 z32 auto n/a

Post

im having problems with my car turning on, i changed messed up coils but no spark. can it be the igniton control module.. :confused:


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Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

Post

Could be the CAS or the PTU. They're the two things mounted on the exhaust cam intake covers on both sides. Since you have a 91, I would look to see if you have the old style PTU or the new style. There was a recall done on these due to a high failure rate of the old style.

wrz32
Posts: 40
Joined: Sun Jul 04, 2010 11:51 am
Car: 1991 z32 auto n/a

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how would i know the difference....

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Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

Post

The old style PTU has a silver heatsink on it, and the new style is solid black. Sorry, forgot to include that in my initial dignosis :p

wrz32
Posts: 40
Joined: Sun Jul 04, 2010 11:51 am
Car: 1991 z32 auto n/a

Post

ok yea i have that one... and thanks man


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