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#61 | |
![]() Join Date: Feb 2006
Location: Magnolia, tx
Posts: 195
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would that be answer my smoking problem? i chkthe plug wires with a digital set on 200ki got the following: #1 8.6 #3 6.2 #5 5.1 #7 4.3 #2 7.0 #4 6.9 #6 5.1 #8 5.8 i wanted to check the coils now i have plenum off what should the readings be ohm testing? Last edited by FULLPWR; 04-17-2010 at 05:03 PM. Reason: added |
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#62 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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if you want to get plug wires think about the msd set for our cars. price is about the same and i think its a better quality wire .jmho
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#63 |
![]() Join Date: May 2007
Location: Westminster, Maryland
Posts: 3,687
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#64 |
![]() Join Date: Feb 2006
Location: Magnolia, tx
Posts: 195
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my accel coils using a digital meter set on 200k ohms:
#1 & #6 - 70.7 #5 & #8 - 7.2 #4 & #7 - 7.3 #2 & #3 - 7.2 that 70.7 is correct i cleaned the contacts very good cuz i thought i wasnt reading it right plug wires with a digital set on 200k #1 8.6 #3 6.2 #5 5.1 #7 4.3 #2 7.0 #4 6.9 #6 5.1 #8 5.8 how do my wire numbers look???? should i replace the wires???? whats up with the 70.7 reading???? should i replace all four coils???? if so, with what coils???? wheres the recommended place to get the actuators? thanks guys ![]() Last edited by FULLPWR; 04-17-2010 at 08:56 PM. |
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#65 |
![]() Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Good morning fellars! Luis, sorry I had to leave Saturday. I had business on behalf of my parents that I tend to while they are wintering in FLA. I mind their commercial building. I clean it and I run the financial side while they're away.
Okay, where are we? I need Paul to show up as He is better with this ohm thing than I am. ![]() ![]() Actuator test & general vacuum diagnostics were well dunn! Yes one is N/G. You can buy two actuators or one, your choice. One thing with the actuators, some of them are assembled wrong. The arms were put in not centered on the diaphrams sooooo the fix is to mount them and use a mity vac to apply vacuum. Look to see that the arm moves smoothly and fully retracts by 8" ( I think that is the FSM benchmark ). If the arm doesn't move smoothly & / or fully open the 2* blades, take the actuator and flip it and do the test again. The object is that the arm fully retracts, and does so smoothly. The GM quality control on these parts is pretty bad and guys have gone thru a few to find two that work correctly without flipping them, or swapping them side to side ( no they're not side specific ). I tried that trick on the dealer I buy from, and they told me get off it. Okay, so maybe mine don't work 100%. By 10" Hg they are fully open, and they're positioned so that the arms move smoothly. Are they in correctly by the FSM? NO! but they work. I'm sure I'm missing some flow somewhere, I live with it. I want to reassure you that yes there is enough oil in the plenum to do an oil change on a Cobalt...that's normal for our cars. Install one of those oil catch can things to eliminate that if you like. No one here will tell you any thing that is incorrect. We just say "I don't know" , but usually some one else knows & speaks up. That's the beauty of our Brotherhood. You want to mind the vacuum connections at the T/Body. That twin connector for the PCV + EVAP system is a pia. I used a zip strap and secured the inner end to the T/B. Then used another after the two lines are in to hold them, or your glue idea..no, use rtv. Then be very aware of the vacuum connection at the lower right side of the T/Body...everyone gets that one wrong once or twice so don't sweat it. Okay back to the smoking. The vac leak @ the actuators could cause a miss, but I can't see it causing a "rich" smoke condition. I believe at WOT we are open loop = pre-selected fueling? The vacuum leak at the twin connector could cause a miss and I think upset the fuel enough to cause smoke?...I think. yea, I'm a bit weak on this 'puter stuff! So at this point I do not think I can be of any help due to lack of understanding of how the FI system really works. Guys like the FBI really know their stuff and maybe they will lend a hand. Oh, did you shake the PCV valves, were they free? If not that could be some of the smoke, maybe. ![]() Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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#66 | |
![]() Join Date: Feb 2006
Location: Magnolia, tx
Posts: 195
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![]() Luis |
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#67 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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first off tom loved the quip about the amount of oil in our plenum . i remember the first time i looked inside my plenum scared me to death
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#68 |
![]() Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Luis I bought my GM coils from partszoneonline.com. They used to be a big chevy dealer in PA. They got axed in the new GM, but they still sell GM parts.
You're in TX, is Scroggins & Dickies still in business? Back in the old days, the 70's, they were the go to guys from the back pages of all the car rags.....yes, that's before the internet!....because I'm an old mofo ![]() ![]() Smart idea about that twin connector, that's what I'm doing to mine when I get around to it! ![]() The oil catch can can be dunn later because you already solved half of the issue of making a connection to the T/Body twin fitting. Search HawaiiZR1 and look at some of Craig's work on the catch can thing for some ideas on the how to side. Craig's stuff is sweet to look at! ![]() Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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#69 |
![]() Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Brad, thanks for the kudos. I want to send some back at you for helping here also, and every one else that jumped in! I know it sounds corny, but I believe in our Brotherhood.
![]() I just wish I had a better grasp of the ohm thing, and a lot of other things on these cars too! I hate to waste any body's cash on parts they don't need. ![]() ![]() Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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#70 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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thanx for the kind words and the good laugh i got on the colbalt plunum oil deal. on the dual connector to do away with that blok of rubber our 90s have i just used some thin wall rubber tubing and a couple of the small tie wraps i tried the bigger ones but the small thin ones seemed to form better and dont feel bad i dont get the ohm/ elctrical deal very well either . too many funky things can happen ,maybe one day i will get it . everyone have a great wekend . writing this is going to make me go for an early morning cruize
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