recently purchased '91

MK3MKB · 09-30-2019, 12:49 AM

I recently picked up a '91 non-turbo manual car. The car was sitting for the last 10 years after the previous owner rebuilt the engine due to a rod knock and couldn't get the car to start again. So far I've jumped +B and FP and the fuel pump came on. I checked for power at the fuel pump relay with key on, didn't have power until jumped. The tach is jumping while cranking. I did get it to cough on brake cleaner to confirm spark.

Any pointers on where to go next would be great.

MK3MKB · 10-05-2019, 09:41 PM

still working with this, I've checked the grounds on the intake. I've checked the EFI fuse. checked continuity across CPS. I doubt the alarm is the cause, I bought the car without a battery. Both sides of the injector plugs are hot at all times. I used a my test light while cranking to see if the light goes out on either side, it does not. I checked for any fluctuating using a multimeter, reads 0 volts while cranking with the probes on either side of the injector connector. One interesting note is the previous owner grounded the knock sensor wire.

yale · 10-14-2019, 11:12 AM

Have you confirmed the timing is correctly set? Sounds like you have spark and fuel, but maybe not at the right time.

tmothy3 · 11-12-2019, 07:03 AM

Check the wire from the battery going to the starter. Inspect also the engine ground.

09-30-2019, 12:49 AM	#1
MK3MKB Stock Join Date: Sep 2019 Location: Georgia Posts: 2	recently purchased '91 I recently picked up a '91 non-turbo manual car. The car was sitting for the last 10 years after the previous owner rebuilt the engine due to a rod knock and couldn't get the car to start again. So far I've jumped +B and FP and the fuel pump came on. I checked for power at the fuel pump relay with key on, didn't have power until jumped. The tach is jumping while cranking. I did get it to cough on brake cleaner to confirm spark. Any pointers on where to go next would be great.

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10-05-2019, 09:41 PM	#2
MK3MKB Stock Join Date: Sep 2019 Location: Georgia Posts: 2	still working with this, I've checked the grounds on the intake. I've checked the EFI fuse. checked continuity across CPS. I doubt the alarm is the cause, I bought the car without a battery. Both sides of the injector plugs are hot at all times. I used a my test light while cranking to see if the light goes out on either side, it does not. I checked for any fluctuating using a multimeter, reads 0 volts while cranking with the probes on either side of the injector connector. One interesting note is the previous owner grounded the knock sensor wire.

10-14-2019, 11:12 AM	#3
yale Intake Join Date: Oct 2015 Location: CT Posts: 38	Have you confirmed the timing is correctly set? Sounds like you have spark and fuel, but maybe not at the right time.

11-12-2019, 07:03 AM	#4
tmothy3 3" Exhaust Join Date: Apr 2015 Location: SC Posts: 70	Check the wire from the battery going to the starter. Inspect also the engine ground.