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Discussion Starter #1
Hello, I just bought the 07 9-3 sedan (100,000 miles) and I have a weird issue that has popped up. So if the gas tank goes below half, the engine starts to stumble and go on safe mode. I would turn it off and then on again and it would work normal for a few starts then it would stumble again and go in safe. I ran the scanner and its saying all 4 injectors are shot. But what I dont get is why it works normal when the tank is over half and starts to run poor under half.. Code says injectors but can it be just that? thanks
 

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Have fuel pressure checked, but my guess is bad ECU and you are just trying to find correlation with gas level with it happening. Neither will be a cheap fix.
 

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Discussion Starter #4
Thanks for the advice.. I got the codes open circuit on all 4 injectors and the boost sensor code.. but I replaced the boost sensor today and all 4 injectors and I replaced the spark plugs pregapped at .09 but it's a stock engine. I tried this before sending the ecm for repair and now its stumbling at all times. I think you may be right, the ecu is the culprit.
 

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Discussion Starter #6
Also when I opened up the injector area there was no injector cups on any... found that weird. Do some models come without them? Is it ok like that?
 

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Discussion Starter #8
Yeah I'm sorry man.. I just had to try something else.. but I dont get why there isnt any injector cups in there? I guess the cups go up to the 2006 model?
 

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As long as urs doesnt have it, keep it like that ..

What is the chance that 5 components (a valve and 4 injectors) would break at the same time .. thats the methodology of thinking
 
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