2004 bonneville sle 0300 code 4th coil no spark

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Ljwilds
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Year and Trim: 2004 pontiac bonneville

2004 bonneville sle 0300 code 4th coil no spark

Post by Ljwilds »

When driving it you need to give it more gas, idle is really ruff. Code comes up 0300. Replaced plugs for iridium gap 060, replaced wires. Tested coil. No spark on #4. Idle seems low and stalled once at stop.
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95naSTA
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Re: 2004 bonneville sle 0300 code 4th coil no spark

Post by 95naSTA »

Sounds like a bad coil but you can always swap them and see if the problem follows.
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95 SLE... a keeper. 241k miles. Low and Slow.
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Ljwilds
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Joined: Wed Jan 11, 2023 4:50 am
Year and Trim: 2004 pontiac bonneville

Re: 2004 bonneville sle 0300 code 4th coil no spark

Post by Ljwilds »

Did replace the coil. Next step suggested is the Ignition control module. Is there a way to test the ICM before spending 200.00?
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95naSTA
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Re: 2004 bonneville sle 0300 code 4th coil no spark

Post by 95naSTA »

I'm not aware of a way to test the icm.
Image
95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.
Ljwilds
LE Member
Posts: 9
Joined: Wed Jan 11, 2023 4:50 am
Year and Trim: 2004 pontiac bonneville

Re: 2004 bonneville sle 0300 code 4th coil no spark

Post by Ljwilds »

Do you know if a good site to order for the best price.
dougtoth
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Re: 2004 bonneville sle 0300 code 4th coil no spark

Post by dougtoth »

Contact Andrew at Bonnevilles Unlimited.
He has good used OEM ICMS.
Price is a lot less than $200.00 and they are not that cheap China junk!!!
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