Outside temp sensitive cel

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03-01-2018, 06:56 AM

#11

DrLoch

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Join Date: 09-07-2008

Location: Mebane, NC

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Which plugs are you using? Try closing up the gap on the plugs. Be aware you have to be very careful about closing the gap.

03-01-2018, 09:47 AM

#12

CHRISCARGUY

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Join Date: 01-17-2013

Location: Ames, IA

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Quote:

Originally Posted by DrLoch

Which plugs are you using? Try closing up the gap on the plugs. Be aware you have to be very careful about closing the gap.

Delco plugs from dealer. The codes came on, then I changed plugs and coils but nothing changed in codes.

03-01-2018, 09:50 AM

#13

CHRISCARGUY

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Quote:

Originally Posted by RJ_RS_SS_350

I'm thinking about drip irrigation. The emitter at the end of the line is often the first one to clog up. Sediment and impurities flow to the end, and collect there.

Unless I'm mistaken, cylinder #1 is at the end of the fuel rail. I see more P0301 on SS than any other P030x. Does this theory sound logical?

So to unclog, could I just run some fuel system cleaner? Or would I need to replace the fuel injector?

03-01-2018, 12:59 PM

#14

Oldblue

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Location: Welland,Ont Canada

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You would have to clean out the fuel rail

03-01-2018, 09:24 PM

#15

RJ_RS_SS_350

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Join Date: 05-01-2014

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Yeah, Oldblue is right, and the fuel rail, and injectors, are a pain to get to. The suggestion from DrLoch is a good one too and cheap and easy. At high boost, the spark can blow out, a smaller gap can help.

03-02-2018, 07:38 AM

#16

DrLoch

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Join Date: 09-07-2008

Location: Mebane, NC

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Leaking Injector seals have been know to cause misses also. If you remove the injectors you need to replace the seals as well, 12653395. Then you need the Kent Moore EN-48266-2 Pusher/Sizer seal installer tools to get the injector seals back on. Since these cars are getting older I may see if I can make those tools, have a CNC shop in the building.

03-02-2018, 10:00 AM

#17

CHRISCARGUY

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Thank you everyone!! So if I got this right, the potential cheap easy fix may be closing the gap. But otherwise, I need to pull the fuel rail, check the seals which would need to be replaced anyway, clean the rail, and potentially replace a $230 fuel injector. Would a fouled injector trip its own special code?

03-02-2018, 10:08 AM

#18

whopper

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Join Date: 04-09-2006

Location: Vancouver, BC, Canada

Posts: 7,032

No, only the by-product of an injector problem will generate a code - ie: misfires/running rich, and in extreme conditions might throw a running lean condition.

ps: I just came across this article - it's good reading on fuel injector problems - http://www.superchevy.com/how-to/add...fuel-injector/