Engine Cut out after 3-5 seconds - ZR-1 Net Registry Forums

dondon · 03-09-2015

Hi

I've had my ZR1 parked for a bit (3-4 months)... decided today was a great day to make sure all it well. The short version of this ends with a tow and waiting on the road for 2.5 hours, here is the long version.

I took the car out, was properly warming it up. About 4 miles from my house is where things started getting dodgy (about the distance to warm engine, although it may be a coincidence). I was coming onto an on ramp and attempted to accelerate... the car seemed to slow and the Prius (yes, Prius) behind me started getting agitated with my speed. The car would not accelerate, and started to bog... about 20 seconds later, it cleared and the car ran normal again, while I was trying to nurse it home. About 2 miles from my house, the car bogged again, but this time I was doing maybe 35, and it resulted in a power loss and I basically pulled into a side street. From that point, I could start the car, let it idle for about 3-5 seconds before the rpm drops heavily, and lingers at an estimated 200 RPM, before the car shuts off. There is not enough power to actually drive the car during the 3-5 seconds... for the sake of moving it to a better location or other.

What I've done: checked
ECM - No Codes
CCM - code 12 - which is normal

I do own a Tech 1, but haven't dug through much deeper than the codes yet. My suspicion is a fuel filter (18 months old) or a fuel pump (both of the pumps are about 18 months old, if that much - the $23 model we see float around this forum). It feels to me as if it runs out of gas, but I don't know. I haven't had a chance to test fuel rail pressure yet, I may only be able to do that Wednesday or so. I did do a secondary fuel pump test with the Tech1 - it showed 0 volts, which is not what I was expecting, thought the number would rise.

My car (1990 with 6400 miles +-) is a mildly odd duck, it hasn't seen ethanol fuel and has original injectors... even today it runs on 93 ethanol free fuel. Any troubleshooting tips, I'd love to have everything resolved within the week... but you never know.

03-09-2015	#1
dondon Join Date: Jul 2013 Location: Saint Petersburg, FL Posts: 32	Engine Cut out after 3-5 seconds Hi I've had my ZR1 parked for a bit (3-4 months)... decided today was a great day to make sure all it well. The short version of this ends with a tow and waiting on the road for 2.5 hours, here is the long version. I took the car out, was properly warming it up. About 4 miles from my house is where things started getting dodgy (about the distance to warm engine, although it may be a coincidence). I was coming onto an on ramp and attempted to accelerate... the car seemed to slow and the Prius (yes, Prius) behind me started getting agitated with my speed. The car would not accelerate, and started to bog... about 20 seconds later, it cleared and the car ran normal again, while I was trying to nurse it home. About 2 miles from my house, the car bogged again, but this time I was doing maybe 35, and it resulted in a power loss and I basically pulled into a side street. From that point, I could start the car, let it idle for about 3-5 seconds before the rpm drops heavily, and lingers at an estimated 200 RPM, before the car shuts off. There is not enough power to actually drive the car during the 3-5 seconds... for the sake of moving it to a better location or other. What I've done: checked ECM - No Codes CCM - code 12 - which is normal I do own a Tech 1, but haven't dug through much deeper than the codes yet. My suspicion is a fuel filter (18 months old) or a fuel pump (both of the pumps are about 18 months old, if that much - the $23 model we see float around this forum). It feels to me as if it runs out of gas, but I don't know. I haven't had a chance to test fuel rail pressure yet, I may only be able to do that Wednesday or so. I did do a secondary fuel pump test with the Tech1 - it showed 0 volts, which is not what I was expecting, thought the number would rise. My car (1990 with 6400 miles +-) is a mildly odd duck, it hasn't seen ethanol fuel and has original injectors... even today it runs on 93 ethanol free fuel. Any troubleshooting tips, I'd love to have everything resolved within the week... but you never know.