At my wits end

[kstwrt91]

Ok so I have ls swapped a wagon and have tried 2 harnesses and new plugs anyway I get spark all the time. Injectors only fire twice with noid light then light gets faint and dies. If I spray intake it fires and runs which tells me a fuel issue. Tried 2 crank sensors and 2 cam sensors no codes vats is deleted I triple checked.. im at my wits end I removed the injectors and cleaned and manually checked with power probe they are working have 58 psi at the rails they will squirt twice then don't anymore so car won't start any pointers please

[kstwrt91]

Oh and the engine is dbw. Has the ams merica cam shaft is a 2005 the tac module seems to be working making the throttle pedal move when I use gas pedal just am not getting injectors to consistently fire

[5FDP]

Post the tune file and log if you can.

[kstwrt91]

Okay i will later on on it

[kstwrt91]

I had to leave and go somewhere it has me mad

[kstwrt91]

How do I do that I've honestly never done it

[kstwrt91]

Here are the files

[gametech]

Unless you are trying to crank the car on the moon, you are not getting a real MAP signal.

[Joshtuning]

Unless you are trying to crank the car on the moon, you are not getting a real MAP signal.

x2 your map is reading way off and maf aint working correctly, check wiring or swap out map

[kstwrt91]

Im sorry im real new on all this what should map sensor reading be

[kstwrt91]

It's got a new map sensor and harness isn't twice could it be a messed up map

[kstwrt91]

It's got a new map sensor and harness is new twice could it be a messed up map

[gametech]

Around 100kpa, depending on altitude. That would be about 14.7psi. You can change your scanner to show whatever units you prefer. And the sensor reading should fluctuate a bit while cranking. Your MAP and MAF readings never fluctuated at all in your cranking log. For anyone to help on the electrical side, you will have to give an exact part number for your map sensor, as well as what your harness is supposed to be for and what type of harness it is (stock pullout, aftermarket swap, etc.).

[kstwrt91]

So my buddy informed me it's an Amazon special map sensor the reason maf isn't reading is because I don't have it in the intake piping right now... I was spraying it with nose candy just to verify was getting spark... would the map sensor screw with the injectors not firing all entire time?

[kstwrt91]

And it's a hpi swap harness

[gametech]

Pretty much all of the china swap harnesses are pinned wrong in one way or another, so who knows what problems may lurk there. However, those problems can be fixed when they arise. The MAP sensor is a different story. In order to have the correct linear and offset, as well as just a decent chance of getting one that works, you need to get a real GM sensor with the correct part number for your engine. This may or may not fix the no start issue, but it will be necessary either way. Just so you know, one of the common pinout problems on swap harnesses is backward MAP sensor wiring, so you should check that first. Also, as an example, the pinout is different between an ls1 and ls2 MAP sensor, and I have no idea which other MAPs may be pinned differently.

[kstwrt91]

It was the map sensor thank you