NO fuel pump... - Page 2

Hozer 88GTConv · 04-02-2007, 07:51 PM

Okay,
Uh, how do you check a fusable link? continuity on both sides?
That matches my diagram too, I'll check it next.
Thanks, John

Hozer 88GTConv · 04-03-2007, 06:03 PM

Okay Gents,
I performed the items on the "crank but no start checklist"
1. When I removed the connector from the starter solenoid, ignition on, and jumpered the screw to the bolt, I got a crank but no spark from the coil plug to a good ground.
2. New coil, new solenoid, no spark. Checked 12volts at the coil wires. Checked all fusible links at the solenoid, the eec-iv relay by the computer and the fuel pump relay, all good with 12v where it should be.
3. New TFI module.
4. Plenty of fuel pressure, and I hear it too.
5. Battery is great, sat it on the charger to ensure plenty of juice.

What next? The PIP module in the distro??...I can't think of much more.
No codes, the STO light stays illuminated during KOEO tests.
Some of the injectors buzz too with the ignition on.
Thanks in advance.

Dark_5.0 · 04-03-2007, 06:44 PM

I would start suspecting a bad ECU. Phuck it, just throw a carbureter on it.

johnwb · 04-03-2007, 07:50 PM

Is there a tach signal?

Hozer 88GTConv · 04-03-2007, 08:20 PM

Yes, the tach needle moves as I crank the car.

running out of ideas...

going to put my timing strobe pickup on each of the spark plug wires to see if they are getting juice.
but I don't think they are...

johnwb · 04-03-2007, 08:26 PM

wired,if you have a tach signal,that should rule out everything to the coil.

Hozer 88GTConv · 04-04-2007, 07:43 AM

Update:
No pulse to coil with noid light, no pulse to red wire on injectors while cranking. No strobe on timing light while cranking.
12 volts at coil, not on blue/red wire on TFI.

Bad PIP.

04-02-2007, 07:51 PM	#21
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Re: NO fuel pump... Okay, Uh, how do you check a fusable link? continuity on both sides? That matches my diagram too, I'll check it next. Thanks, John __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

04-03-2007, 06:03 PM	#22
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Re: NO fuel pump... Okay Gents, I performed the items on the "crank but no start checklist" 1. When I removed the connector from the starter solenoid, ignition on, and jumpered the screw to the bolt, I got a crank but no spark from the coil plug to a good ground. 2. New coil, new solenoid, no spark. Checked 12volts at the coil wires. Checked all fusible links at the solenoid, the eec-iv relay by the computer and the fuel pump relay, all good with 12v where it should be. 3. New TFI module. 4. Plenty of fuel pressure, and I hear it too. 5. Battery is great, sat it on the charger to ensure plenty of juice. What next? The PIP module in the distro??...I can't think of much more. No codes, the STO light stays illuminated during KOEO tests. Some of the injectors buzz too with the ignition on. Thanks in advance. __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

04-03-2007, 06:44 PM	#23
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: NO fuel pump... I would start suspecting a bad ECU. Phuck it, just throw a carbureter on it. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

04-03-2007, 07:50 PM	#24
johnwb 88lx work in progress Join Date: Jul 2005 Location: canada Posts: 62	Re: NO fuel pump... Is there a tach signal? __________________ 88lx,4cly body,90 5.0l,e cam,summit headers,holley 650 double,edelbrock performer rpm intake,crane valve springs,e7tes lots of machining,5 speed,3.73s,exhaust flotech,with 2.5"exhaust

04-03-2007, 08:20 PM	#25
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Re: NO fuel pump... Yes, the tach needle moves as I crank the car. running out of ideas... going to put my timing strobe pickup on each of the spark plug wires to see if they are getting juice. but I don't think they are... __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

04-03-2007, 08:26 PM	#26
johnwb 88lx work in progress Join Date: Jul 2005 Location: canada Posts: 62	Re: NO fuel pump... wired,if you have a tach signal,that should rule out everything to the coil. __________________ 88lx,4cly body,90 5.0l,e cam,summit headers,holley 650 double,edelbrock performer rpm intake,crane valve springs,e7tes lots of machining,5 speed,3.73s,exhaust flotech,with 2.5"exhaust

04-04-2007, 07:43 AM	#27
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Re: NO fuel pump... Update: No pulse to coil with noid light, no pulse to red wire on injectors while cranking. No strobe on timing light while cranking. 12 volts at coil, not on blue/red wire on TFI. Bad PIP. __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
fuel pump	Mustang Brandon	Windsor Power	11	01-08-2005 11:03 PM
Fuel Pump?	zach0	Classic Mustangs	1	04-27-2003 12:58 PM
fuel pump choice...fuel economy???	fongo	Windsor Power	3	09-28-2002 10:03 AM
Fuel pressure regulator+fuel pump?	HiFlow5 0	Windsor Power	3	03-15-2002 12:21 AM
Fuel pump and fuel pressure regulator upgrade, opinions?	chris91LX	Windsor Power	3	02-26-2001 11:21 AM