Red top not starting after upgrades

[240sxHitman]

I have a stock red top sr with a few bolt ons. Last time I drove the car (wednesday) every was fine. I installed used 555 nismo injectors i brought from Damon( i think his name is camryonbronze), z32 maf rs enthaply tuned ecu and wiring up the maf plug. When i first tried to start the battery i guess did not have enough power to start. The starter would just click. Took a battery out of my other car and tried to start it. When I did i was almost like if the start got stuck. It would turn the engine a little then lock up. I noticed when i turn the key on with out starting the frp gauge goes up from the pump priming then drops back down to 0. Switched back to my stock ecu and still the same result. I took out all plugs and smelled fuel, but when i looked down in each spark plug hole i saw a slight puddle in cylinder 4. At one point when the motor to start to turn over but not start i saw fuel dripping out of my exhaust( down pipe/cat meet point). Not sure what else to really do. I had a quarter tank and tried putting more fuel in.

one side note. before i changed my injectors i took out the fuel pump fuse started to ger the fuel out of the rail. would that cause any problems??

[PyR0NiAk]

Switching back to your stock ecu isn't going to tell you anything if you still have 555 injectors and a z32 maf. I'm leaning toward your maf wiring being incorrect. With the enthalpy ecu in, unplug the MAF. This should throw the car in limp mode. It'll run like s***, but it'll start..

[240sxHitman]

Switching back to your stock ecu isn't going to tell you anything if you still have 555 injectors and a z32 maf. I'm leaning toward your maf wiring being incorrect. With the enthalpy ecu in, unplug the MAF. This should throw the car in limp mode. It'll run like s***, but it'll start..

Unplugged maf still no start. I have a circuit sport maf plug from frsport. the wires match the sr harness. Ive even redid the wiring, to make sure it was shielded. Also tried another ignitor chip.

[PyR0NiAk]

Unplugged maf still no start. I have a circuit sport maf plug from frsport. the wires match the sr harness. Ive even redid the wiring, to make sure it was shielded. Also tried another ignitor chip.

Let's start from the basics then.

Fuel
Spark
Compression
Timing

Fuel is by far the easiest one to test, so we'll start there. Before we check out the individual injectors, we'll start with fuel to rail. Get you an empty gas can. Remove the fuel line from the feed side of the rail, and extend it into your gas can. Have someone else turn your key on and see if fuel starts flowing.



Note:

The starter would just click. Took a battery out of my other car and tried to start it. When I did i was almost like if the start got stuck. It would turn the engine a little then lock up.

This still sounds like battery not being strong enough to turn it over.

[240sxHitman]

Unplugged maf still no start. I have a circuit sport maf plug from frsport. the wires match the sr harness. Ive even redid the wiring, to make sure it was shielded. Also tried another ignitor chip.

Let's start from the basics then.

Fuel
Spark
Compression
Timing

Fuel is by far the easiest one to test, so we'll start there. Before we check out the individual injectors, we'll start with fuel to rail. Get you an empty gas can. Remove the fuel line from the feed side of the rail, and extend it into your gas can. Have someone else turn your key on and see if fuel starts flowing.



Note:

The starter would just click. Took a battery out of my other car and tried to start it. When I did i was almost like if the start got stuck. It would turn the engine a little then lock up.

This still sounds like battery not being strong enough to turn it over.

Well I decided to put back my old set up and go from there. Once i put my old 370cc injectors and ecu, it started. I kept the z32 wired in. I then put back my tuned ecu and once again started. Looks like the injectors are damaged on that little black ring that sits above the smaller O ring. So I will just purchase new injectors

[PyR0NiAk]

I wondered about them, but didn't want you to scrap them if it was your fuel pump.. Sorry to hear that, but glad you found the problem.