CarJway Posted October 25, 2003 Share Posted October 25, 2003 Well after like 2 weeks of me wanting to blow up my car i now know that my car only runs good while the Fuel Injector Cleaner fluid is running through my engine. Other wise the car will stumble, have absoultly no power any where on the rpm band and have an extreamly rough idle. Now that i kinda know what my problem is does anyone know what can be causing this? Is it that my Injectors are done after 25 years or what? any possible answer will help me out!!! oh yea it's a 78 280z.. Quote Link to comment Share on other sites More sharing options...
jmead Posted October 25, 2003 Share Posted October 25, 2003 any chance that you're running old gas? Maybe the gas is cruddy and the cleaner is the only thing that lubes them up enough to work? Quote Link to comment Share on other sites More sharing options...
CarJway Posted October 26, 2003 Author Share Posted October 26, 2003 naw.... this is the second full gas tank of 93 octane with the fuel injector cleaner. And i run the gas tank as low as i can go, then i filled it up with 93 and fuel injector cleaner.... Quote Link to comment Share on other sites More sharing options...
Cruez Posted October 27, 2003 Share Posted October 27, 2003 Is the engine stock? Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted October 27, 2003 Share Posted October 27, 2003 Maybe you have way too much octane....? You would have to have some serious mods to that engine to need 93 octane. Octane resists burning, if you have too much octane then it will cause your engine to have trouble running and it will cause deposits. The cleaner probably burns easier and is helping you overcome the situation. BTW, "Premium" isnt any better gas, it's just higher octane.. Quote Link to comment Share on other sites More sharing options...
CarJway Posted October 28, 2003 Author Share Posted October 28, 2003 well maybe thats my problem.... To high of an octane... yea this cars basically stock besides little minor stuff..... Thanks a lot guys imma run this tank down and put what mid or low grade ? i guess i will try low grade first to see how that runs.... just saved me 300 bucks hopefully... Quote Link to comment Share on other sites More sharing options...
fl327 Posted October 28, 2003 Share Posted October 28, 2003 its not the gas, leave that gas in. what else have you checked? Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted October 28, 2003 Share Posted October 28, 2003 its not the gas, leave that gas in. what else have you checked? I wouldnt be so quick to rule that out. Sure it is probably not the only issue, but it certainly is going to be a major factor. You should be running on the low octane gas. Quote Link to comment Share on other sites More sharing options...
CarJway Posted October 29, 2003 Author Share Posted October 29, 2003 what else have i checked? i replaced the fuel filter and the pcv vavle. that did nothing. Then i asked my friends dad that is a mechanic and he said the fuel injectors because of the fact that it runs perfect with the fuel injector cleaner fuild running through the engine. But i wanted to know what people with Z's thought of this little big problem... went driving tonight and sure enough.. as soon as that fuild ran out back to the same crap. bad idle, no power on the rpm band and so forth. And now the fact that the battery's dead isn't helping. Charged the battery drove it for a while and when i go to start it again DEAD. but the fuel injector thingy problem is my biggest thing right now.... Quote Link to comment Share on other sites More sharing options...
Guest dawg95_2000 Posted October 30, 2003 Share Posted October 30, 2003 Does it seem to die after you run your headlights? I would run my headlights every night after work and the next day it wouldn't start everytime. the wires on the fusible links were thin and destroyed. got thicker gauge wire and haven't had a problem since Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted April 11, 2005 Share Posted April 11, 2005 My old N/A 280Z motor totally stock with 130K miles on it used to run smoother and sound smoother (exhaust) with injector cleaner it it also. i never understood why. Quote Link to comment Share on other sites More sharing options...
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