NO problem (emissions fail) - Page 3

SolReaver · 08-07-2013, 10:00 AM

7: Yea, Those vac leaks can be tricky. As notoriously cheap as I am I will just buy a good vac gauge and get some solid numbers to be sure I got em all. I have kicked myself a dozen times for missing such a large leak. I got the vac line at the bottom but didn't hit the connector at the top and that thing is actually whistling with a few Psi.

I was expecting to see the throttle body seal or a cracked line. (one is cracked)

Any kits, techniques, tricks, advice, or sources you guys can offer would be appreciated. I hit the bolts that will be removed with PBblaster and I am sourcing parts. Looks like the manifold is coming off and parts will be flying. Just another day in paradise.

pfarah · pfarah's Garage

Hey guys,

I've removed my ICV without taking off the intake; it's not so bad actually. You will have to remove the J-hose and a couple of vacuum hoses in front of the manifold as well as the #1 spark plug. Using an extension and universal, the two bolts are easily removed and a long flat screwdriver to loosen the two hose clamps. Don't forget to disconnect the EC, then simply navigate your hand under the manifold to grasp the valve and wriggle it out. I guess after removing my original unit a couple of times (slowly realizing that cleaning only works temporarily), then replacing with a new valve, the process was much better than removing the manifold which I refused to do! Since my car is an 84, the procedure should be the same (I think). Good luck!

Volhv · Volhv's Garage

I knew it could be done!
Removal is probably not that hard. Installation is probably a pain. Also, if you have fresh pliable hoses on both ends.... that will surely help.

1982_928 · 1982_928's Garage

For some reason I feel the need to prove my point. Haha.

RainGuard® 31-190 - Windshield Wiper Blade | O'Reilly Auto Parts

They're the cheapest crappiest thing out there, but they're 5 bucks.

SolReaver · 08-13-2013, 01:30 PM

Buddy, When it rains in TX, You DON'T want crappy wiper blades.

SolReaver · 12-30-2013, 02:00 PM

I PASSSED! yaaaaaaa.... (not by much, but I will take it.)

The FQS was set to 8, the injectors were rebuilt by WH, and the vac leaks were repaired.

I rebuilt the IAC, which can be done, but shouldn't be attempted by most of you. Removal of the IAC pretty much requires you remove the manifold unless you have experience building ships in a bottle.

This car passed CA smog and is running the original CAT. It might cough up a hairball now and then but it isn't dead yet. sooo.... nya nyaa nyaaa to all the doubters out there.

She is still high on NOX and I have no where to go to richen the mixture. Thanks to all.

Solreaver.

GreenWater · GreenWater's Garage

Glad it passed. I know it sucks when a car doesn't pass smog.

I got my notice a few weeks ago to smog check my 87. The last time I did it, it barely passed, it was high in HC and I think NOX too. (Stock Cat still) I'm replacing the O2 sensor tomorrow and then I will get it tested. Fingers crossed.

djnolan · djnolan's Garage

Quote:

Originally Posted by SolReaver

7: Yea, Those vac leaks can be tricky.

The most logical source of vacuum leaks are the large vacuum/air hoses such as jboot, ICV, AOS, canister vac, and PCV (if the 944 had one). Air leaks throw the dme into confusion, leaner than expected, can't compensate.

I like spring clamps instead of barrel clamps. (So does Toyota) Spring clamps tighten up on their own as the hoses dries out and shrinks. With barrel clamps you end up overtightening and damaging the hose.

Replace those hoses, tighten those clamps, replace with spring clamps. Take a lesson from Toyota on hose clamps, now all clamps are spring clamps.