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| WHAT is going on with this car ???! (Page 3/6) |
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Lou6t4gto
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JUN 13, 03:29 PM
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I printed that out, going to start checking. this is getting older then Me ! LOL
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Lou6t4gto
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JUN 19, 01:24 PM
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Tach Works. checked and there IS 5 volts at the map connection. the temp reads the Ohm that it should at temp. But still have the same problem. Help !
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Lou6t4gto
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JUN 19, 01:25 PM
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oh, and Absolutely NO" Vacuum leaks". anywhere
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Dennis LaGrua
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JUN 19, 08:40 PM
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OK, was running great, then it wasn't, then it was and now its not. If you are pulling a rich code then then engine is getting more fuel than the ECM can compensate for. If you replaced all the sensors then the:
Fuel Pressure System could go rich if pressure is too high. Check your fuel pressure regulator function by measuring the fuel pressure. Also check for a leaky injector. My guess is that your problem is fuel related.
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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Lou6t4gto
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JUN 19, 10:45 PM
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INJECTOR is brand NEW, (is Not leaking). I'll put the "gauge" on the line again tomorrow.. supposed to be 13-14 lbs ? thanks
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Lou6t4gto
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JUN 21, 07:09 PM
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well, Here's where it gets Weird. turn the key "on", No fuel pressure. crank it, & it will start up run at 13 psi until shut off, then immediately go to ZERO. turn key on again, goes up to about 6 then drops to ZERO again ! will start and run but NOT hold pressure if shut off, not even for 2 seconds ! So, What Now ???
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Lou6t4gto
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JUN 21, 07:14 PM
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WHY would it pull a "RICH Code" if it's running out of Pressure ??
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Owiko
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JUN 21, 11:37 PM
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Well, usually when you turn the key to "On" the fuel pump should run for about 2 seconds and then stop if there is no crank signal from the engine. Likewise after you shut the engine off, the fuel pump should stop and the fuel pressure should dissipate.
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Lou6t4gto
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JUN 21, 11:41 PM
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BUT, it should" initially" put out 14 " just turning the key on" and not starting, AND HOLD IT. it won't, only 6psi and then WON'T hold it.
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Lou6t4gto
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JUN 23, 12:13 AM
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