3800 help

[Xtant12]

so I was driving my car yesterday and out of nowhere and suddenly sounded like I had a huge exhaust leak and then after that the car just shut off it was like a bogging feeling and the engine was misfiring like crazy and my check engine light was flashing very fast on and off. I check the fuel pressure when I got home shoots to 50 when primed but after that it just falls back down to zero I don't know if it's supposed to stay at 50 or what. I also check for spark because the car won't start but it will crank. It would not start at all since it turned off.and there was no spark and cylinder 1 I'm not quite sure what the problem is I know a lot of guys on here have 3800 do you guys have any ideas how you could drive and everything would be fine then suddenly your car just dies I'm running out of ideas here fuel pump works fine the rewire kit is still are connected so maybe my ignition control module went bad maybe the crank position sensor I'm not sure what do you guys think you could be.

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[Turbocharged400sbc]

pull plugs and make sure none are smashed before you do anything

 

[1quick]

Yup pull the plugs just to double check, even with a dead hole it would still run decent though

 

[Xtant12]

I will check when I get home. So just asking but should my fuel pressure go from 50 to 0

 

[Turbocharged400sbc]

yes, most perf pumps dont have a checkvalve so the system bleeds down quickly

 

[Xtant12]

hello all so I got my car started it turns out I somehow blew one of those small 15 amp fuse is underneath the hood. I charged the battery and scanned it. The car actually starts now but it idles at 1100 rpm does not fall below that and when you give it gas it sounds like there is a huge misfire also my check engine light is on and I got a P0230 code. there's no misfire codes or anything and it idles good just high. Anyone have any ideas why would be doing this I did just get the PCM back from zzp. Anyone know if a raise voltage on the fuel pump

 

[Xtant12]

Anyone ever had this issue

 

[02BlueGT]

Did you check the plugs? The P0230 code is usually a bad relay or a bad fuel pump ground.

 

[Xtant12]

I went over everything from fuse box back. I will pull the seats and double check again. You think I would have to change out the fuel pump??

Dam it I want to go to Lukes!!!!

 

[Xtant12]

Also dumb question but what relay

 

[02BlueGT]

Also dumb question but what relay

Fuel pump relay. You can swap it with another relay in the box and see of the code clears.

 

[Xtant12]

Yeah I did that and it changed nothing. I also went over all the connections besides pulling out the fuel pump. They were all solid. I found a thread in here from fast cat. Turns out it was her pcm. You think it could be that

 

[Xtant12]

Also I didn't know if there was another relay besides under the hood

 

[Xtant12]

Anyone have any thoughts

 

[Diavolo]

Check the fuel pump resistor. Mine was cracked on my 97 gtp at one point

 

[Xtant12]

I checked for the fuel pump resistor and it turns out I guess I do not have one they stop doing it in 2001 so here's the thing I miss Luke's I miss the Island Lake parade I need to get this car running right because I literally have no other car now does anyone think this could be my PCM if I don't hear anything I'm just going to have to replace the goddamn fuel pump again and hope for the best

 

[Turbocharged400sbc]

p0230 is a circuit malfunction on the primary side of the FP relay.

check that it has power to the primary side, and that the pcm grounds the other terminal for 2 seconds when the key is turned on.

absolutly nothing has changed except a pcm reflash/exchange at zzp?

 

[Xtant12]

p0230 is a circuit malfunction on the primary side of the FP relay.

check that it has power to the primary side, and that the pcm grounds the other terminal for 2 seconds when the key is turned on.

absolutly nothing has changed except a pcm reflash/exchange at zzp?

Besides the reflash we also did the rewire kit to the fuel pump.

Today I changed to a brand new E85 pump. Still did the same thing. I appreciate the help I really do. I been to get this going. I missed out on everything so far

 

[Turbocharged400sbc]

when you did the rewire kit you messed something up on the primary side of the relay I have no clue how you tapped it in since the ZZP rewire kit sucks ass

 

[Xtant12]

But the car ran for about 400 miles. Then turned off. After I replaced the fuse it ran like it did now. The kit was installed exactly how it said to.