fuel injectors

Pretaco · 01-23-2008, 10:17 PM

Is the ecu grounded?
The two white around black wires and the brown one next to them? And the case too. You may have a problem like mine was, when I grounded the case of my ecu, it started right up.
If you have a stethscope listen to the injectors, they should click.
You can also use a long screwdriver, just put your ear on the handle.
Or get a noid light and hook it up to the injector plug to see if they are getting grounded by the ecu.

btwilson86 · 01-25-2008, 04:31 PM

Also check the distributor... When I put in my JDM 7MGE, I installed the distributor wrong. It would sputter on the starter spray at a few hundred RPM's for a few seconds, then just die off. I had mine 180 out- firing on the exhaust stroke, not the compression. So all it was doing was backfiring.

salomon68 · 01-26-2008, 06:16 AM

i know i have those white wires and the one brown wire grounded cause that was a problem at first. the engine wouldn't even turn over until i grounded those. i will check on the ecu case and the injectors to see if they are grounded. i'll also check on the timing, that sounds promising. thanks a lot! i'll post back.

01-23-2008, 10:17 PM	#1
Pretaco 3" Exhaust Join Date: Dec 2007 Location: Glendale, AZ Posts: 126	Is the ecu grounded? The two white around black wires and the brown one next to them? And the case too. You may have a problem like mine was, when I grounded the case of my ecu, it started right up. If you have a stethscope listen to the injectors, they should click. You can also use a long screwdriver, just put your ear on the handle. Or get a noid light and hook it up to the injector plug to see if they are getting grounded by the ecu. __________________ '88 Supra Targa 5 speed w/ '90 7M-GTE Currently Running Good For Sale: Light blue body parts, Blue interior parts all from '90 supra targa turbo manual. Also for sale: R154 trans, brake pedal, master cylinder, booster, abs actuator, sensors, abs ecu, driveshaft, 3.90 lsd rear end, radiator, wiring, speedo cable, 8 saw blade wheels, '88 ecu, relays, cruise control actuator (bad cable), empty fuel tank, etc....

01-25-2008, 04:31 PM	#2
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	Also check the distributor... When I put in my JDM 7MGE, I installed the distributor wrong. It would sputter on the starter spray at a few hundred RPM's for a few seconds, then just die off. I had mine 180 out- firing on the exhaust stroke, not the compression. So all it was doing was backfiring. __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

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01-26-2008, 06:16 AM	#3
salomon68 Stock Join Date: Jan 2008 Location: Knoxville, TN Posts: 10	i know i have those white wires and the one brown wire grounded cause that was a problem at first. the engine wouldn't even turn over until i grounded those. i will check on the ecu case and the injectors to see if they are grounded. i'll also check on the timing, that sounds promising. thanks a lot! i'll post back.