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Power FC Installed pfc ,hard start , idles like ....

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Old Nov 14, 2013 | 03:01 PM
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Installed pfc ,hard start , idles like ....

Hi there I have a 93 r1 model
Mods are
Emission removed
Emission related wires are removed from original harness
550 pri 1300 sec
Fmic
Non sequential set up
Air pump removed

We've just install the pfc with a map loaded by banzai for the mods above ,the car started up with a lot of cranking and the gas pedal to the floor .. The car holds idle and runs but idle like crap . Idles like it running on one rotor I have spark on all four plugs and replaced with new plugs. Fuel is there also .
The first time we crank the motor over with the pfc installed the idle control valve made noise so we disconnected it got it to start but the motor shakes idle rpm is smooth ,motor just shaky and no power through the first 1000 rpm .didn't want to take it any higher than that . Is this part of idle learning process ? Or is there some sort of problem .. Also the knock sensor shows there are some knocking at idle . Pfc shows it's going up half of the first bar while idling .. Any suggestion will be appreciated thank you
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Old Nov 14, 2013 | 03:26 PM
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The knock bar does not mean anything, press the up arrow to see the real number value.

What is the boost reading with the key on and car not running? What is the boost reading with the car idling?
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Old Nov 14, 2013 | 03:57 PM
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Thanks banzai with the quick reply the boost pressure is reading -27 to -30 with the key at on position. And with the car on it's at -330 -331 some where Around there . Ill probably check the wiring again... It keeps flooding the only way it'll start is if I pull the egi fuse crank it for a while .plug it back in and crank it while feathering the gas pedal then it'll start
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Old Nov 14, 2013 | 04:04 PM
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Sounds like you have a stuck fuel injector. Did you have RC modify the secondaries? Make sue that one is not stuck open, apply 12v and ground, make sure the click
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Old Nov 14, 2013 | 05:06 PM
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I think you might be right one might be stuck but I cant quite hear it with the shop running all the machines I'll take off the intake manifold and check it out later on . Ill keep you updated thanks
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Old Nov 14, 2013 | 05:30 PM
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pressurized the system for air leaks/vacuum leaks?
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Old Nov 14, 2013 | 06:59 PM
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Originally Posted by arghx
pressurized the system for air leaks/vacuum leaks?
Yep no vacuum leak idles not haunting .motor just shakes .if I'm sitting it he car it sounds like a helicopter is above me . Injectors a're not stuck they all click when grounded and add power to ... would bad ecu ground cause this ?
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Old Nov 14, 2013 | 08:27 PM
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Check the spark plugs.

All you need is compression, fuel and spark for it to run.
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Old Nov 15, 2013 | 03:55 PM
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I have fuel spark and compression .. I think it's running too rich all injectors click so they arnt stuck .. Are the primary injectors suppose to be set at 100 % percent on the pfc ?
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Old Nov 15, 2013 | 03:57 PM
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While the car is running if I pull the front primary injector the car runs much better but still stumbles and shake
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Old Nov 15, 2013 | 04:28 PM
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Of course 550cc are supposed to be at 100%. If you think it is the map that is the issue just reset it to the factory default. Pretty simple just "initialize all" and turn the key off and back on. Then you can turn off the twins and set the secondaries to 1300cc. You will lose all the lower fan setting and the dyno tuned map, but if you think it is the issue, then it does not really matter.

However I use this same base map for every 550/1300 cc set up and the cars run near perfect with very little manipulation.

You sure you have the injector connectors on the correct injectors? I have been seeing this a lot lately with DIY built cars that have been shipped to the shop because the owners can't get the cars running/drivable.
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Old Nov 15, 2013 | 04:33 PM
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I'm going to take out the harness and recheck it with fsm color codes I'll update you after thanks banzai off your support
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Old Nov 16, 2013 | 06:40 PM
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Wheeeew after a long day of checking wire colors too see if I have all the injectors plugged in the right spot I am happy to say that I didn't mess up on the wiring , but what I'm embarrassed to say is that I I DiD pinch the o ring on the front secondary injector ...=\ even tho the injectors were clicking giving me symptoms of injector that are not stock open it was leaking once the fuel pump primed .... ( should have been pulled off the fuel rail to test ) thanks for all the advice and info to all those that helped . Much appreciated . Now it time to install everything back on and see if she will run ,and not run into any minor mistakes .. Thanks guys
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Old Nov 16, 2013 | 07:16 PM
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Make sure the grommets are installed between the primary rail and block.
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Old Nov 16, 2013 | 09:30 PM
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Yealp everything is fine now starts up and idling perfectly. But it was getting late so we closed up shop .wont open till Monday. By the way banzai with the current map on the ecu what's safe boost on psi .ots currently set at 10 -12 but I'm just making sure thanks
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Old Nov 17, 2013 | 06:40 AM
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I can't say any level of boost is safe. It is a base map, now you need to install a wideband and verify the AFRs for your specific setup.
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