TPI_BLAZER

iTrader: (1)

Yea, Ill take that pn. So basically, just hook up power to the tach and use the pig tail to connect to the gray connector and done...?

Tuned Performance

iTrader: (92)

yes you just need power and ground to the tach and the white wire feed is the tach signal. if you want the gauge to iluminate you will need to check for power on your headlight switch one terminal will go to the gauges and will have power in the parking light mode and the headlight position. The tach pigtail is a female spade and looks to me like its a acdelco pt486 or gm 12117353.

TPI_BLAZER

iTrader: (1)

Thx again...

Tuned Performance

iTrader: (92)

No problem

TPI_BLAZER

iTrader: (1)

This should please the neighbors.... and hopefully the AZDEQ:

Tuned Performance

iTrader: (92)

I have never heard the 44 , but have had 40 single and dual chamber and love that raspy sound

TPI_BLAZER

iTrader: (1)

44 looks like it falls in between the 40 and the 10.... hope to have it on tomorrow


http://www.flowmastermufflers.com/?page_id=11098

Tuned Performance

iTrader: (92)

should have a nice sound, can't wait to see the numbers from the new test. Fingers are crossed

TPI_BLAZER

iTrader: (1)

This is a Catco Cat and FM Super 44 off a Y pipe and Doug Thorley headers, 3" all the way out from collector...




Overall very happy. My impressions on the 44 is that is it deeper and raspier than the Magnaflow that was on it (model unknown, 3" I/O about 28" long). I think it is actually quieter at idle-OD too...
Had some time to kill before work...



Might have to re-think that antenna mount, lol...

TPI_BLAZER

iTrader: (1)

Freeway onramp....

TPI_BLAZER

iTrader: (1)

Again, pretty happy with the results. I wanted a simple turn down out of the muffler, but I talked to the guys at the AZ MVD and they pretty much said the wouldnt test a vehicle if they had to reach very far inside the fender well.

Next option was to have a pipe made just for testing...nah too much work, decided to kick it out in front of the rear tire.

Truck isnt a rock crawler and Im happy with the suspension height so Im not worried about it effecting ground clearance on a trail...


True test will be Sat..!!!

Tuned Performance

iTrader: (92)

looking good

Zane M

iTrader: (1)

Looks great.

TPI_BLAZER

iTrader: (1)

Thx...

Tuned Performance

iTrader: (92)

great sound

TPI_BLAZER

iTrader: (1)

So Im up this morning ready to take it for emissions test.....wont start...wtf?

Ran great all day yesterday...motor turns over easily, I noticed there is no pressure on the fpg...been trying for 10 min to start it.

Should that thing hold pressure over night or at least build pressure when Im trying to start it? At zero tells me its not starting because its not getting fuel...yes tank has gas, at 1/2.

Tuned Performance

iTrader: (92)

I cant believe your luck. The fuel pressure does bleed off back to the tank within 30 mins. When you turn the key to the accessory position the 2 second fuel pump prime will build the pressure to the fuel rail. Can you hear the pump kicking on ?

TPI_BLAZER

iTrader: (1)

Nope...kinda figured that what it was. Knew I should've changed it when I had the tank down.

tpi84stepside

Ouch...

Maybe it's just the relay..Or fuse.
Don't they (pumps) usually get weak before they go??

TPI_BLAZER

iTrader: (1)

I have been having the hard start issues though...so maybe it was on the way out.

tpi84stepside

I can hear my relays click when I turn the key on..How about you? are they somwhere that you can hear them?

TPI_BLAZER

iTrader: (1)

No, I dont hear anything.


Truck was a carb'd 305, mech pump, before the swap so Im neven sure where to start looking for them.

TPI_BLAZER

iTrader: (1)

Right....



Cant say that I heard a click...Ill start here.

tpi84stepside

My truck interior looks like yours..I put the computer and the relays under the dash near where the old computer was..I guess yours could be anywhere...PITA

Tuned Performance

iTrader: (92)

It looks like the relay under the hood on the bulk head passenger side is the fuel pump relay and fuel pump fuse right next to it. You should check the fuse first the you can even look at your aldl connector if it has a wire in pin g that goes to the relay so you could apply power there to see if the pump kicks on. Bypassing the low oil shut down switch with a paper clip from the orange wire to the grey wire will give power directly to the pump as well. The orange wire is hot all the time but is fused.

Tuned Performance

iTrader: (92)

Right

TPI_BLAZER

iTrader: (1)

Fuse is good, just to check its a 30a in there.

Gonna run to O'reilly's for a relay real quick, they are literaly 1mi away

Tuned Performance

iTrader: (92)

I think you should rename the thread , tpi blazer more than I ever wanted to know about tpi and my blazer.

Tuned Performance

iTrader: (92)

http://www.hotrodlane.cc/newtech/tun...elcircuit.html

TPI_BLAZER

iTrader: (1)

No sheet right...

New replay, system pressurized right away....started right away....THX!!!

Off to emissions

TPI_BLAZER

iTrader: (1)

TPI_BLAZER

iTrader: (1)

12/14/12:

HC: 6.25 Standard: 4.0 FAIL
CO: 101 Standard: 40 PASS
NOX: 4.4 Standard: 5.5 FAIL

02/12/13:

HC: 6.15 Standard: 4.0 FAIL
CO: 27.3 Standard: 40 PASS
NOX: 6.35 Standard: 5.5 FAIL

03/01/13

HC: 4.03 Standard 4.0 FAIL by .03!!!!
CO: 22 Standard: 40 PASS
NOX: 5.8 Standard: 5.5 FAIL by .81!!!

Im at a loss., I even put a qt of Denatured Alcohol in the tank... may just need to put AIR system back on..??

Pass equip insptection 3X without it....

86T/A_Ram_Air

whats your base timing at?

TPI_BLAZER

iTrader: (1)

Just set it to 6-7* last week...

86T/A_Ram_Air

the only thing I can think of other than that is that the A/F ratio is off but I doubt it. It should be passing. Did you retain EGR?

TPI_BLAZER

iTrader: (1)

Yes, was the only part I didnt replace with new.....

Tuned Performance

iTrader: (92)

The high nox maybe the egr. If you do decide to put the air pump back on I will return some funds and take care of the programing.

TPI_BLAZER

iTrader: (1)

OK, gonna pull the plenum...again...and replace EGR. Its the only thing that wasnt replaced...

Double check timing.

Check plugs.

Maybe change oil just for the hell of it...did it 1 month ago.

Pull O2 and look at that...

Change evap filter..

Try again, more concentrated solution of alcohol. If fail, then put AIR back on.

Here pic of Evap..pretty much was left alone, anything look out of place. I know there is supposed to be a solenoid there???

TPI_BLAZER

iTrader: (1)

Pulled the canister, is that even possible? Could'nt figure how to open it...RA sell a filter...so...?

TPI_BLAZER

iTrader: (1)

It appears I have the wrong canister for 92' TPI, see above. Correct for 92' TPI is:



Correct for 86' Blazer is:



Im not even sure what I have, appears to be late 70's GM truck...

305sbc

iTrader: (3)

I think it highly unlikely that your CCP system would have anything at all to do with your emissions numbers.
If you have a functioning EGR system, then do not add Ethanol to your fuel.
In fact you are likely to test better using 87 octane, E0 if possible.

I would check your AFR to be sure, but assuming your AFR is correct, then it seems possible your EGR passages may be at least partially blocked by either a gasket or carbon build-up. I would check into that while you have the plenum off.

More spark advance increases burn efficiency, and so raises the NOX content of the exhaust. EGR counter-acts this by reducing burn efficiency.
The ECM normally adds some spark advance during the time it is assuming that EGR is flowing. If you have restricted EGR flow, but are getting the advance, then it will negatively affect your emissions numbers.

Misfires can cause higher HC in the exhaust. Sometimes tightening up the spark-plug gaps to 0.030" can help, but misfires generally indicate another problem as the cause.

TPI_BLAZER

iTrader: (1)

If you look at my canister its not even the right one. Basically the gas tank vents into it and gets sucked right back up into the TB. There's no purge valve or vent to control the flow which in turn does effect the A/F. It may not be the specific reason I failed, but I believe it contributed a little...and if you look at my numbers I failed by just a little. Gonna replace the canister with the correct unit and hose routing.

As far as the EGR its just gonna get replaced. I should've done it while the plenum was off...I have no idea how old or what shape its in. If I have to go through the trouble of getting to it to inspect it, Ill just replace it for piece of mind.

Thx for the tip on the alcohol and 87. Will double check timing this weekend, but set it as close to 6* as I could last weekend.

305sbc

iTrader: (3)

If your CCP is affecting your AFR then your BLMs at idle should be bottomed out at around 108. That's a very easy & quick thing to look for.

If you really suspect the CCP but cannot test it properly, then you can simply unhook the canister from your intake for the emissions test to ensure you are getting no extra vapor from the tank.

TPI_BLAZER

iTrader: (1)

Excellent idea...will just have to make it appear as if its hooked up...simple.

TPI_BLAZER

iTrader: (1)

Went to local PAP...todays loot:

91' Caprice canister with purge valve and pigtail, $30....retail $150+ Ill probably do the block off like 350sbc did, but at least I have it if needed.

A few other odd and ends....Windstar fans and a few switches. Will put lights inside grill on floor switch and with the window-tank selector, Ill do my window and wire another accessory..porbably more lights.

Definately need the dash trim as I have nothing there now..

TPI_BLAZER

iTrader: (1)

OK, new CCV on...this is how it should look:



I still need to wire the pigtail...cant find any dead leads? Wires from the pigtail are green-pink/black stripe. I did find blue-pink/black stripe...? Would be green-blue be the same if the can is from a Caprice?



In the meantime I will just block the ccv-tb line as suggested by 350sbc. Just put in a coupler that I filled with scilicone...for now, keep everything appearing oe.

Tuned Performance

iTrader: (92)

On the wiring polarity will not matter. I would bet if the wiring is still there its tucked under your dash. F7 dark green/yellow uses the ecm to control the ground side of the solonoid. on the fused powerside the stock harness tied together theair solenoid and egr solenoid and hot side of the check engine light. i know where there is a junction block lol

TPI_BLAZER

iTrader: (1)

Im gonna have to dig around the EGR soleniod and make sure that is even hooked up...or would I be experiencing specific symptoms?

Was just there yesterday Got board and made an adjustment to my aux lighting...pics later today.

TPI_BLAZER

iTrader: (1)

Yup. I had my aux lights behind the grill jimm'ied are were hot off the batt with an in-line fuse. I put them on the dist block with a relay and in-line fuse...





...and went old school with a foot switch I snagged at th yard this wekend.....

TPI_BLAZER

iTrader: (1)

So I peaked at the ECM and if Im looking at the right connector....its not there.



It also looks like Im missing: M/T shift light...I have Auto no biggie

Port Switch solenoid...?
Converter Divert Solenoid...?