 #3 cylinder injector quirk, When I pull the lead, nothing happens. |
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| moneysmarts |
 Jul 20 2007, 10:11 AM
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#1
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Member  Group: Members Posts: 164 Joined: 2-March 04 From: Central Massachusetts Member No.: 1,745 Region Association: None 
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I thought I had a bad injector on #3. With the motor is running, when I pull the lead to #1, #2, or #4, the engine stumbles as you would expect. If I remove the connector to cylinder 3, however, nothing happens. Even though I was getting a decent spray pattern when I pulled the injector out, I decided to replace the injector. Still nothing. There IS spark at the plug. And my noid light shows that there's electrical pulses at the connector lead. (IMG:style_emoticons/default/blink.gif) On the back of the block, under the air cleaner, I have three pairs of white wires that are solidly grounded.
Any ideas fellas? Thanks |
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Replies
| swl |
Jul 20 2007, 12:26 PM
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#2
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
It is actually easy to break a wire inside the insulator - Not that I would ever have done something like that (IMG:style_emoticons/default/rolleyes.gif)
Easy to check and maybe worthwhile to do just to make sure. Pull off the main connector to the ECU and measure the resistance to ground on pins 3,4,5 and 6. connected to the injectors they should all have the same low resitance - 3 ohms is what I measured on mine. Precise resistance is not important just that they are about the same. If #3 is much higher than the rest then you may have an answer. given that you have had that connector on and off a few times ... |
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Posts in this topic
moneysmarts #3 cylinder injector quirk Jul 20 2007, 10:11 AM
dr914@autoatlanta.com
I thought I had a bad injector on #3. With the ... Jul 20 2007, 10:25 AM
moneysmarts George:
Thanks for the quick response.
If I switch... Jul 20 2007, 10:31 AM dr914@autoatlanta.com with a good spark then it has to be a bad injector... Jul 20 2007, 01:13 PM swl I guess "#3 isn't firing" wouldn... Jul 20 2007, 10:27 AM Vacca Rabite to make bang, you need spark, fuel, and compressio... Jul 20 2007, 11:03 AM moneysmarts I don't know for sure, Zach.
I suppose I can f... Jul 20 2007, 11:09 AM Dr Evil Valves on 3? Had you messed with the harness befor... Jul 20 2007, 11:06 AM moneysmarts Was running fine.
Started to get intermittant buck... Jul 20 2007, 11:14 AM Dr Evil Coolio, the plug will tell...
Not switched wires ... Jul 20 2007, 11:31 AM moneysmarts OK.
Plugs out. On the tan side, and dry as a bone... Jul 20 2007, 11:55 AM 2-OH! Bad connection on the injector wires at the plug..... Jul 20 2007, 02:36 PM moneysmarts :headbang: :headbang:
Two bad injectors.
One of ... Jul 21 2007, 11:46 AM Vacca Rabite Rock'n! Glad you got it back on smooth.
... Jul 21 2007, 01:14 PM |
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