EricM9104 Posted July 4, 2008 Author Report Share Posted July 4, 2008 old car > 90* with ac on, stalling like it's running out of gas = VAPOR LOCKturn the ac off and tough it out. holy shit, just looked that up and seems like that was what was going on. thanks. Quote 2015 Honda Civic LX 4dr | 24k miles Stock H/U and mids/highs Power Acoustik GW3-12" D2 Sub HiFonics BXX1200.1D @ 1ohm Random 2.5^3' dual ported box NVX LOC Stinger wiring throughout 1977 Chevy SWB Cammed 350 Dual exhaust Cheap Wish stereo Link to comment Share on other sites More sharing options...
qu1cks1lver56 Posted July 4, 2008 Report Share Posted July 4, 2008 shit i didnt even think about that, havent dealt with vapor lock in a loonnnggg time. i dont remember what we did on our old motorhome to get it to quit doin that. Quote First Gen Xterra: Always changing DNX 690HD RF 360.3RF T3002RF T4004RF T10001bdSilver Flute 6.5"s Tang Band 1" TweetersSundown X18 in 7cubes net tuned to 32hz Trust me .25 Blows your Load. Link to comment Share on other sites More sharing options...
missinglink Posted July 5, 2008 Report Share Posted July 5, 2008 Vapor lock? On that vehicle? Pure comedy gold. Any decent mechanic will be laughing as soon as you turn your back if you tell him that. 1997 model year Nissans have electronic fuel injection. This is not vapor lock. The good news is a 1997 will have OBD - On Board Diagnostics. You should start by pulling the codes to see what may be causing the poor performance. A failing sensor (TPS, O2, MAP, IAT, CT, MAF...) or a weak ignition system component could cause what you describe. Your fuel pressure should be right at 34 psi with the engine idling, and should go up to 43 psi if you pull the vacuum line off of the fuel pressure regulator. 'Link Quote missinglinkaudio The United States Marine Corps. When it absolutely, positively has to be destroyed overnight - even if "it" belongs to the base commander... Link to comment Share on other sites More sharing options...
Big P Posted July 5, 2008 Report Share Posted July 5, 2008 if a miss trouble code comes up i would think bad injector/fuel tapit if you have no trouble code i would put new plug wirs on it. its hard to tell tho with out being there. also vaporloc acurs mostly in caberated cars with mechanical fuel pumps. it rarely hapens in fuelemjected vehicles with high pressure fuel pumps. its late n im slightly inbreated so im spelchecking Quote Link to comment Share on other sites More sharing options...
jon_570 Posted July 5, 2008 Report Share Posted July 5, 2008 a loose ground can also do really weird things to cars...check your battery and all other grounds. Quote New system"RF T5001BD 980watts RMS at one ohmSoundstream T5-12"kenwood 4 inch front doorpowerbass 5 inch back2.3 cube foot enclosure tuned to about 34hz Link to comment Share on other sites More sharing options...
EricM9104 Posted July 6, 2008 Author Report Share Posted July 6, 2008 a loose ground can also do really weird things to cars...check your battery and all other grounds. Already checked. Truck's working fine, the shop didn't find anything wrong with it. Quote 2015 Honda Civic LX 4dr | 24k miles Stock H/U and mids/highs Power Acoustik GW3-12" D2 Sub HiFonics BXX1200.1D @ 1ohm Random 2.5^3' dual ported box NVX LOC Stinger wiring throughout 1977 Chevy SWB Cammed 350 Dual exhaust Cheap Wish stereo Link to comment Share on other sites More sharing options...
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