weird issues, please read problem inside and help if you can

Parley with regards to your 1987 to 1991 Bonneville, Olds 88, Olds 98 86-90 or Buick Le Sabre, Le Sabre T-Type and Park Avenue 85-90 . Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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88bonnsse
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Posts: 1634
Joined: Thu May 22, 2008 10:08 am
Year and Trim: 1988 sse - 80,000 on the clock and my first car...

1995 se wit da sle package- 120,000 on the clock and ticking stronger then ever...
Location: allentown pa

Re: weird issues, please read problem inside and help if you

Post by 88bonnsse »

ok so I took a pic, keep in mind my coils packs are on top of rear valve cover by fire wall, the plug for the icm is on the left side of the coil packs by my finger in the pic..

my finger in the pic is on the pin where my number 1 cyl spark plug wire is on, then Its 6, 5, 4, 3, 2, ( 2 is last one on the far right.

I don't think firing order is correct the way I have it. cause im getting real good spark. and lots of fuel. but the fuel is not igniting. it stinks of raw gas when I try to start the car and it don't turn over.. and when I remove the air intake hose off the throttle body, smoke comes out of throttle body and stinks like gas.


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Jrs3800
Retired Admin/Techinfo Admin
Retired Admin/Techinfo Admin
Posts: 26009
Joined: Mon May 19, 2008 2:08 pm
Year and Trim: 03 SLE, 95 SE, 95 TS SE
Location: Space Coast, or at least it used to be

Re: weird issues, please read problem inside and help if you

Post by Jrs3800 »

John, I meant that the Firing order is 1-6-5-4-3-2 like a 3800, Did not meant that thats how it went coil wise...


Follow what Matt has said on the coils....

And remember standing in front of the car

Coil wire location
( 3-6 ) ( 2-5 ) ( 4-1 )

Firewall side
Rear Bank
2 - 4 - 6


Front Bank is
1 - 3 - 5
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88bonnsse
Posts like a Northstar
Posts like a Northstar
Posts: 1634
Joined: Thu May 22, 2008 10:08 am
Year and Trim: 1988 sse - 80,000 on the clock and my first car...

1995 se wit da sle package- 120,000 on the clock and ticking stronger then ever...
Location: allentown pa

Re: weird issues, please read problem inside and help if you

Post by 88bonnsse »

thanks jr, that's where I was really getting confused. lol I was thinking the firing order is the order I had to put the wires on the coils.. lol. appreciate it guys.. I will head out to the garage around 11 and try that. thanks
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MattStrike
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Posts: 4760
Joined: Tue Aug 25, 2009 8:32 pm
Year and Trim: '99 Montana
'04 Dirtymax
'97 Camaro
'92 Trofeo
Location: SE Michigan

Re: weird issues, please read problem inside and help if you

Post by MattStrike »

Waste spark -> each coil fires two cylinders per revolution. The two cylinders that share a coil are 180 degrees out of phase with each other on these engines. So while one cylinder is on the compression stroke the other cylinder that shares the coil has to be on the exhaust stroke. Only the one with fuel in it will fire, the other is on the exhaust stroke so that spark is 'wasted'. So it doesn't matter which post on the correct coil each 'pair' actually is on. 3/6 always go on the same coil, but can be in any order on that coil. 2/5 and 1/4 are the other pairs.

There are actually 8 different ways of correctly connecting the wires to the coils :sillywilly:
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The Fleet:
'93 SSEi - Twincharged + manual Build thread
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'05 STS - V8, AWD, her DD
'92 Trofeo - Fair weather DD
'99 Montana - top swap 3800
'04 Sierra 2500HD - LLY Duramax

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Something cool, trust me.

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'92 Bonneville SSE
'87 LeSabre T-type
'67 LeSabre

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RIP:
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