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New coils, still weak spark, no start

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Old 03-27-2020 | 10:54 PM
NomadRV's Avatar
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Default New coils, still weak spark, no start

2001 Disco 2. Just replaced plugs, wires, and coil packs. Still have no start, and weak (orange) spark. Any ideas?
 
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Old 03-28-2020 | 08:23 AM
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Did it run before you did these repairs? Or is this a non-running vehicle from the get-go? Did you happen to smell fuel when the plugs were out, and what did the old plugs look like, coloration wise? What's the condition of the battery, is it turning over strong...if the battery condition is poor...the amount of power will be reduced to coil packs on account of amperage draw from starter.

Brian.
 
  #3  
Old 03-28-2020 | 08:49 AM
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Originally Posted by The Deputy
Did it run before you did these repairs? Or is this a non-running vehicle from the get-go? Did you happen to smell fuel when the plugs were out, and what did the old plugs look like, coloration wise? What's the condition of the battery, is it turning over strong...if the battery condition is poor...the amount of power will be reduced to coil packs on account of amperage draw from starter.

Brian.
Has been running lean, misfire codes. Last week drove it home, wouldnt start next morn. Replaced CPS about 3 mos ago. Replaced valve cover gaskets, throttle heater plate, plugs, wires, and coils since I was there. Seems to turn over strong, but orange spark, and no start
 
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Old 03-28-2020 | 12:18 PM
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What plugs did you use?
 
  #5  
Old 03-28-2020 | 02:10 PM
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Try a fuel pump assembly. Grab a cheap replacement off eBay.

 
  #6  
Old 03-28-2020 | 02:15 PM
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Are the lean codes throughout the engine, both sides? If so, I'd be checking fuel pressure. Are you checking spark with a spark-tool/ gauge or just looking at the plug? If misfire codes are only on one side, might be an 02 sensor issue...but l would think it would start. Were the removed plugs white-ish in color? What were the codes exactly? You could give it a little snort of ether and see if she starts (after the MAF sensor, right at throttle body). If it starts on ether, then you can follow up with diagnostics on fuel system.

Brian.
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