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Old 03-22-2018, 07:02 PM   #7 (permalink)
19bonestock88
Master EcoModder
 
Join Date: Jun 2016
Location: WV
Posts: 1,264

IGL - '04 Saturn Ion
Team Saturn
90 day: 56.19 mpg (US)

grayOS (personal use) - '19 Mitsubishi Outlander Sport ES
90 day: 30.71 mpg (US)
Thanks: 58
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So Iím thinking that the lack of upper RPM power was due to the cat loading up with fuel... Iíve thus far disconnected injector 4 to stop dumping fuel into the exhaust and what results is the same dead miss on 4, but without the crippling loss of high RPM power... power is linear with RPM and throttle, but fuel consumption is still higher than normal and it *might* make 85hp lol...

It still cranks over even enough for me to not suspect a compression issue, Iím guessing itís either fuel or spark...

Iíve got a spare intake manifold readied and a spare fuel rail/injector set cleaned up and ready to try... they havenít been professionally rebuilt but I did clean the crap outta them with carb/choke cleaner and used new o-rings... the other car ran fine when parked, hoping they work...

My theory is that my problem is fuel because if a coil has failed, TWO cylinders would be dead, not just one... maybe the ignition module isnít wanting to fire #4?
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