u/DashBulletTrain

▲ 1 r/240sx

Injector Issue Debugging Question

I am working on trying to fix an issue with my 95 S14. It has a stock motor and ECU, but has been refusing to start and run correctly. I have replaced a lot of parts (partly towards fixing this, partly because the old parts were bad via testing), and can confirm that the Fuel Pump and FPR are working correct, the Injectors are new OEM, the Spark Plugs are new, the engine temp sensor is new, knock sensor is new, 02 sensor is need, and the MAF is new. I have a CONSULT cable and all the values from these sensors that it provides appear to be fine.

The issue is when cranking, it will not start, and quickly seems to flood out. The injectors are showing a time open of at least 40ms per pulse (the Nisscan software maxes at 40ms) and that seems way to large from what I have read online, but I'm up front that I am learning and figuring things out, so could be reading bad sources. The plugs I have are extremely fouled up from this so I am getting new plugs today, and picked up a noid light to make sure the injectors aren't just being held open, and will be testing all of that by this weekend.

My question is, am I right in understanding that those are a massive time for the injectors to be held open per pulse? And if so, are there any suggestions on what to investigate that could be causing the issue. The other values that I think matter via the software are the water temp shows 73F, duty cycle is 6.36, Air flow is 1.28, A/F Base is 100 and the ECU is reporting no errors.

Any information or education would be appreciated.

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u/DashBulletTrain — 8 days ago
▲ 1 r/CAguns

I've been digging into the .416 Barrett because I have always wanted a .50BMG but sadly California worries I'll start drive bys and turf wars if I have such a powerful rifle, so the .416 is my next option.

Just to get it out of the way, I in no way think I need this for any reason other than "large caliber go boom" makes me smile, so there is no logic in this purchase, just dreams and giggles.

With that out of the way, I was looking at the MRAD ELR as my option. I would love the M82A1, bug being Semi-Automatic I would have to put a fin on the grip and that just sounds absolutely awful. Unfortunately I had been told that the MRAD could swap between multiple calibers including .416 so I figured I would get that in a smaller caliber, and just buy the .416 barrel kit later, but have recently learned that was wrong, and only the MRAD ELR supports the .416, which means instead of 6500, I'm looking at closer to 10k for the weapon.

Barrett also has the M99 in .416 which only looks to run around 4.5k, but I haven't seem much discussion comparing the two and seeing if the MRAD is truly worth more than twice as much, or even if the M99 is a decent weapon system. If I go M99, will still have a good feel or is it just the ".416 Barrett for the Poors"

I'm sure with the M99 I would still love the weapon, but would love to just hear opinions from people who have fired them or better yet owned them, and see what the general views are.

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u/DashBulletTrain — 25 days ago