won't stay running

[smasher]

i just added a new 1000cc fuel injectors, fuel regulator, and 2 bar map sensor. I also moved the iat sensor to the intake. I'm using the default settings in the 2 bar os map sensor settings which may be the issue.

[bk2life]

i just added a new 1000cc fuel injectors,.

what injectors and did they come with GM data that you used to modify the tune?

[gtstorey]

Log?
Injector part number?
Injector data?
Map part number?
Details of what you are working on?
Fuel pressure?
Fuel system setup?
etc
etc
etc

[smasher]

GM 19418808 map sensor
1000cc (100 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector IS304-1000H
58psi constant
starts with gas pedal applied but won't stay running for a log
408 tune by sirius just made some modifications to it.

[gtstorey]

Log without it running can say a lot. A log that you can keep running will say even more.

[smasher]

runs really rich

[5FDP]

MAP sensor is pegged at 105kpa, that is a big problem.

Also you'll need to switch to the 2 bar MAP channel to log it correctly.

[smasher]

can i put the 1 bar back in there to see if that will solve it without issues?

[blindsquirrel]

19418808 is a 1 bar sensor. Linear/offset of 94.43/10.33.

[smasher]

that's strange I was told if it has 2 rows of numbers it is a 2 bar. ill order this one 19418810 then it says 2 bar. thanks for your help

[blindsquirrel]

Never heard of that, sounds like bullshit.

Cobalt SS MAP sensor is 1 bar. Cobalt SS baro sensor is 2 bar. P/N 12615136 or equivalent.
https://www.rockauto.com/en/moreinfo.php?pk=10061124

[SiriusC1024]

Why would a baro be 2 bar? The cobalt ss map sensor is 2 bar, 90423637, and it's also a TMAP. Take advantage of that.

[SiriusC1024]

Wait a minute. I thought I already gave you good options for 2 bar maps? TMAP or IAT/MAP separate. With separate IAT get a 12615136. Linear/offset is 200/8.

Fuel pressure is setup for non-referenced. Is that the reg configuration?

Set Fuel>Transient>Min Fuel Mg to 0.005.

[smasher]

I bought an adapter to use the tmap but was concerned it leak, the adapter wasn?t really well made. I then thought about drilling it but then I was concerned with the way the oring was setup on the tmap that it would leak so I just dropped in a 1 bar I had thought was 2 bar and drilled out the egr spot next to the map sensor for the iat sensor. Ill adjust those configs and get a that map sensor. will the 19418810 not work or is the other just more commonly reliable? not sure if the injector info is correct I just plugged in what they had onsite. they didn't send any info with the injectors.

https://fuelinjectorclinic.com/GM-DATA/HP-TUNERS-1000

[edcmat-l1]

Never heard of that, sounds like bullshit.

Cobalt SS MAP sensor is 1 bar. Cobalt SS baro sensor is 2 bar. P/N 12615136 or equivalent.
https://www.rockauto.com/en/moreinfo.php?pk=10061124

Squirrel is right. This is the sensor you want. Plug and play. No adapters, no cutting and splicing.

Why would a baro be 2 bar? The cobalt ss map sensor is 2 bar, 90423637, and it's also a TMAP. Take advantage of that.

That's what it is.

[blindsquirrel]

2005-2007 Cobalt SS (the supercharged one, not the turbo)
screenshot.14-11-2024 06.21.28.png

[gtstorey]

2005-2007 Cobalt SS (the supercharged one, not the turbo)
screenshot.14-11-2024 06.21.28.png

And also not the NA 2.4L which GM also called SS for some years.

[edcmat-l1]

That's the same sensor PN we been using for nearly 20 years now.

[Alvin]

We have a handy listing of a bunch of map sensors with offsets/etc



https://www.pcmofnc.com/wp-content/u...AP2-scaled.jpg

[smasher]

12615136 ,and 19418810 are the same correct? It’s on the same chart labeled under 2 bar. It says 19418810 is the updated version of 12615136.