87 7mge not starting

btwilson86 · 09-14-2011, 05:05 AM

You can override some of the fuel pump circuit by placing a jumper wire in the diagnostic box between FP and B+. This should cause the fuel pump to continuously run when the key is in the "on" position.

If you can't hear the fuel rushing through the fuel rail, you can take the fuel filler cap off and listen for the pump through the filler neck

Jrsinnovations · 09-17-2011, 01:52 AM

Okay so I tried the jumper technique and I did start to hear a buzzing noise coming from around the fuel rail but the car still turns on but turns off immediately I believe I'm still not getting fuel. So no change after the jumper technique. Now after trying to start the car for a while I do get a puff of white smoke out of the throttle body.
Any input would be greatly appreciated. Thank you in advanced.

cre · 09-17-2011, 06:02 PM

Did you try running the car with the jumper in place? Test the AFM, pay particular attention to the FC switch.

Jrsinnovations · 09-18-2011, 04:43 PM

Okay so I decided to change the fuel pump and when testing the pump out of the tank it would be engage but it would be really weak compared to the new one. So I again set the cam shafts and the crank shaft at zero and realigned the distributor. So we gave it a few tries and bam it started so now we left it on for a while and when I would give it some gas it the rpm would fluctuate

so I adjusted the distributor but still the same problem. Now I remember this problem occurring before the car died. I would floor it and it would seem like if I would hit a wall or I would be pulled back I would just encounter a loss of power than slowly I would regain it after a bit. Would I have faulty sparkplug wires?, injectors?, I have no idea what to look for or check. Please help. Thank you.

09-14-2011, 05:05 AM	#1
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	You can override some of the fuel pump circuit by placing a jumper wire in the diagnostic box between FP and B+. This should cause the fuel pump to continuously run when the key is in the "on" position. If you can't hear the fuel rushing through the fuel rail, you can take the fuel filler cap off and listen for the pump through the filler neck __________________ 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

09-17-2011, 06:02 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Did you try running the car with the jumper in place? Test the AFM, pay particular attention to the FC switch. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

09-18-2011, 04:43 PM	#4
Jrsinnovations Stock Join Date: Aug 2011 Location: California Posts: 7	ITS ALIVE AGAIN But still have problems Okay so I decided to change the fuel pump and when testing the pump out of the tank it would be engage but it would be really weak compared to the new one. So I again set the cam shafts and the crank shaft at zero and realigned the distributor. So we gave it a few tries and bam it started so now we left it on for a while and when I would give it some gas it the rpm would fluctuate so I adjusted the distributor but still the same problem. Now I remember this problem occurring before the car died. I would floor it and it would seem like if I would hit a wall or I would be pulled back I would just encounter a loss of power than slowly I would regain it after a bit. Would I have faulty sparkplug wires?, injectors?, I have no idea what to look for or check. Please help. Thank you.

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09-17-2011, 01:52 AM	#2
Jrsinnovations Stock Join Date: Aug 2011 Location: California Posts: 7	Okay so I tried the jumper technique and I did start to hear a buzzing noise coming from around the fuel rail but the car still turns on but turns off immediately I believe I'm still not getting fuel. So no change after the jumper technique. Now after trying to start the car for a while I do get a puff of white smoke out of the throttle body. Any input would be greatly appreciated. Thank you in advanced.