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  1. mattcsn

    Head gasket

    I tore the top end off to take a look at the head gaskets as I was having heavy smoke from passanger breather and loosing coolant slowly. I figured what the heck I'll take it apart do some cleaning Upgrade some parts and take a look. Well the head gaskets don't look all that bad. In the past...
  2. mattcsn

    Smoke from breather

    So I just started noticing smoke from the breather and dip stick. First thought is head gasket "again" or a leaking ring? Figure I need to do a leakdown test but wanted to see what you all thought? Car drives just fine, no issues, loss of power or smoke from the tailpipe. PVC was checked as...
  3. mattcsn

    Help with scan results and knock

    I installed alky kit and everything was going well. All the sudden 4 weeks in the car bogs and misses once it's warmed up about 5 minutes in. Before that its fine and runs great. Can someone take a look at the scan results of my latest drive? I'm getting random knock when coasting as well as...
  4. mattcsn


    Anyone have any ideas on diagnosing this? Was out driving the other day and just randomly started hearing this ticking noise. I was thinking lifter tick, but not sure and wanted to see if you all had any options before I removed the valve cover. Its definitely driver side. Thanks for the...
  5. mattcsn

    Alky kit installed. Questions

    Installed razors alky kit, everything went well and all seemed good. I drove it for maybe 30 minutes and the entire alky tank went dry. I have no leaks that I can find. I'll see if it runs dry sitting tonight to see if it possibly before the pump. Regardless, I parked it and went back to it 20...
  6. mattcsn

    Need some help gn running poor

    I made a thread a few days ago but finally was able to take the gn out and get a ward up scan. A lot of the numbers are off but I can not pinpoint the issue nor know where to look next. Crank shaft, O2 ignition coil and module have been changed. No real noticable difference. Car sputters and...
  7. mattcsn

    Correct oxygen sensor?

    I purchased a denso 234-1001 but just realized that only has 1 wire. The others recommended by gn users have 4 wires. Which one is correct mine only has 3 wires. Sent from my SM-N950U using Tapatalk
  8. mattcsn

    Rough idle and spudded under acceleration.

    I'm having an issue that kinda sprang up from nowhere. Under heavy acceleration the car will spudded and miss. It only happens after about 5-10 minutes of driving. Before that the car runs just fine under wot. After replacing the ignition coil and module the car seems to idle worse. It's better...
  9. mattcsn

    Kapalini fillers?

    Anyone have experience with these fiberglass fillers? They were a gift, but I've never heard of them. thanks. Sent from my SM-N950U using Tapatalk
  10. mattcsn

    What the heck is this noise

    Was just driving and decided to gun it a little and randomly started hearing this. Anyone have any idea what it is? I was running a log during that video Sent from my SM-N950U using Tapatalk
  11. mattcsn

    Casper chip?

    I searched around and couldn't really find much on the Casper chip. I just picked up this gn up not too long ago and was wondering if anyone had any info on it? I suspect it's dated and just worth getting the tt one? Sent from my SM-N950U using Tapatalk
  12. mattcsn

    Dash air

    I have no dash air and can't figure out what is wrong. I do have vent and lower air. I have followed the vacuum line and it's hooked up correctly. It goes below the passenger side Into the firewall (pic in red) where I can't follow it anymore. I have replaced the vacuum control valve and it's...
  13. mattcsn

    DIY Alky kit

    I can't seem to access Steve monroe's diy instructions. Anyone know of an updated link?
  14. mattcsn

    New GN with issues.

    I just picked up my first 87 GN that has been sitting for 8-9 years. It needed a fuel pump that I replaced with a DW300 hot-wired and it fired right up. It idled great, but at hard acceleration would buck/stutter. After replacing the spark plugs (autolite AP25), vacuum hoses and air filter...