My New '86GN passed

[Jeff Rand]

I got a great buy on a '86 Gn that had not been running since '02. The original owner said it was smoking and thought it had a blown head gasket. I changed all the fluids and did a tuneup and noticed that every time I started it up, it ran better and better. I knew it did not have a head gasket problem, so I decided to take to a test only smog station (in Ca.) to be tested. The HC's at 1500rpm were at the limit (128) and everything else was well in the limits. This engine is stock with 36# injectors, an adjustable FP regulator, and someones chip. It does have a 3" TH downpipe with a cat and during the test setup I had the car running to keep everything hot.
Jeff

 

[TurboDave]

That's a pretty dirty burn ther Jeff, better get that cleaned up!!

 

[XxDarkSidexX]

I got a great buy on a '86 Gn that had not been running since '02. The original owner said it was smoking and thought it had a blown head gasket. I changed all the fluids and did a tuneup and noticed that every time I started it up, it ran better and better. I knew it did not have a head gasket problem, so I decided to take to a test only smog station (in Ca.) to be tested. The HC's at 1500rpm were at the limit (128) and everything else was well in the limits. This engine is stock with 36# injectors, an adjustable FP regulator, and someones chip. It does have a 3" TH downpipe with a cat and during the test setup I had the car running to keep everything hot.
Jeff

nice jeff! yea I passed cali smog a few years back with stock un opened motor on my original 86, had 42injectors, 3"DP 3"cat, trans plus with LT1 sensor, ta60 and a chip from neil i bought used.

can you post some new pics jeff? I wanna see the car that will destroy me in the future

 

[Jeff Rand]

That's a pretty dirty burn ther Jeff, better get that cleaned up!!

Dave, you are correct, it is pretty dirty. I will continue to work on it but for right now I am focusing on the body and getting it stripped down and ready for paint. Much work to be done but mechanically it is in good shape. I will try to take some pictures.
Jeff

 

[gossamer]

Congrats to you Jeff! It's always such a releif when they pass. Now you don't have to worry for another couple years :smile:

 

[Jeff Rand]

That's a pretty dirty burn ther Jeff, better get that cleaned up!!

Dave,
I have been working on the car to get the engine "cleaned up". I was able to get a direct scan with the ecm and found my BLM's at idle were high. Also the MAS flow was low (about 3). I changed the O2 sensor (got a heated one) and IAC sensor because the old one was erratic. I still had high BLM's even finding some vacuum leaks. Today I found a leaking EGR gasket and now life is good again. BLM's are 128 and MAS flow is 5 however I see my O2's are jumping around at idle but it seems to run well.
Jeff

 

[TurboDave]

Dave,
I have been working on the car to get the engine "cleaned up". I was able to get a direct scan with the ecm and found my BLM's at idle were high. Also the MAS flow was low (about 3). I changed the O2 sensor (got a heated one) and IAC sensor because the old one was erratic. I still had high BLM's even finding some vacuum leaks. Today I found a leaking EGR gasket and now life is good again. BLM's are 128 and MAS flow is 5 however I see my O2's are jumping around at idle but it seems to run well.
Jeff

O2's should be all over the place during idle. Shows a good active O2.

 

[Jeff Rand]

O2's should be all over the place during idle. Shows a good active O2.

Dave,
Thanks for the information. I think I will replace the fuel pump, injectors (I was given 55# with a turbo tweak chip and modified ECM) and I will be go to go. I also picked up a TA 49 turbo for free. Nice to have such giving friends.
Jeff