7mgte issues need help doing diag

touge_monster86 · 03-09-2010, 12:35 AM

i lined the marks on the cam gears to the marks on the metal plate and had the crank mark set to zero. also have the cps with the drill mark lined up to the notch . i think that is right but it could be wrong. the only issue with the hole engine code is that its actually a 7mgte i swapped into an ae86 so im not sure if the code will show up on the cluster or not . and even if it did would the engine actually have to turn over and run in order for it to throw a code .

man i racking my brain. it ran great right before i changed the head gasket

cre · 03-09-2010, 04:16 AM

The check engine light is easy to wire up. One side of the lamp goes to a 12v source (the 7.5A Gauge fuse in the stock setup) and the other to the pin labelled "W" at the ECU (see the EFI section of the TSRM for the pinout).

Some codes will set without the engine running... it's always worth checking.

touge_monster86 · 03-09-2010, 06:50 PM

hooked up engine light got nothing . i also decided to test the injector resistor box on the passenger side and power at the ecu and its good . but i check for power at the afm and there was none and i am also wondering if there should be power going to the injectors with the key on the on position

would a faulty tps have anything to do with this ?

cre · 03-10-2010, 01:56 AM

No the TPS is only a trim sensor... the car can be driven without it, throttle response and idle just suck and it'll like to stall if the IDL switch is damage or the TPS is actually disconnected.

Yes, the injectors will have power with the ignition in the ON position... they won't have a ground as that's supplied by the ECU.

Engine light??? You replaced the check engine light or what? Pull the glove box out and test the ECU for +12v at Batt, B+ and B1+. I can't provide a pinout as you haven't filled out your profile or mentioned in this thread what year your car is... but those are the pins you need to check. Batt should always have power and +B and +B1 are both ignition switched.

touge_monster86 · 03-10-2010, 06:29 AM

the car is an 85 corolla but the motor is from a 91 supera.

touge_monster86 · 03-11-2010, 06:50 PM

ok checked the b+ and b1+ and they both have power . now i said before that the injectors did not have power going to then well i had a the wrong year ecu on it and now they have power. so i have spark, power to injectors , power to the ecu, power and all functional resistors but still same result no start!!

i updated my profile

cre · 03-12-2010, 04:04 AM

Have you actually measured the fuel pressure yet? Are you sure the CPS is clocked right and not 180 degrees off? Have you inspected the CPS to ensure that the pickups are properly gapped? You're running all the 7M-GTE's electronics and engine harness correct?

03-09-2010, 04:16 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The check engine light is easy to wire up. One side of the lamp goes to a 12v source (the 7.5A Gauge fuse in the stock setup) and the other to the pin labelled "W" at the ECU (see the EFI section of the TSRM for the pinout). Some codes will set without the engine running... it's always worth checking. __________________ 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 --->

03-09-2010, 06:50 PM	#3
touge_monster86 Stock Join Date: Mar 2010 Location: huntington beach Posts: 11	hooked up engine light got nothing . i also decided to test the injector resistor box on the passenger side and power at the ecu and its good . but i check for power at the afm and there was none and i am also wondering if there should be power going to the injectors with the key on the on position would a faulty tps have anything to do with this ? Last edited by touge_monster86; 03-09-2010 at 07:50 PM.

03-10-2010, 01:56 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	No the TPS is only a trim sensor... the car can be driven without it, throttle response and idle just suck and it'll like to stall if the IDL switch is damage or the TPS is actually disconnected. Yes, the injectors will have power with the ignition in the ON position... they won't have a ground as that's supplied by the ECU. Engine light??? You replaced the check engine light or what? Pull the glove box out and test the ECU for +12v at Batt, B+ and B1+. I can't provide a pinout as you haven't filled out your profile or mentioned in this thread what year your car is... but those are the pins you need to check. Batt should always have power and +B and +B1 are both ignition switched. __________________ 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 --->

03-11-2010, 06:50 PM	#6
touge_monster86 Stock Join Date: Mar 2010 Location: huntington beach Posts: 11	ok checked the b+ and b1+ and they both have power . now i said before that the injectors did not have power going to then well i had a the wrong year ecu on it and now they have power. so i have spark, power to injectors , power to the ecu, power and all functional resistors but still same result no start!! i updated my profile Last edited by touge_monster86; 03-11-2010 at 07:06 PM.

03-12-2010, 04:04 AM	#7
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Have you actually measured the fuel pressure yet? Are you sure the CPS is clocked right and not 180 degrees off? Have you inspected the CPS to ensure that the pickups are properly gapped? You're running all the 7M-GTE's electronics and engine harness correct? __________________ 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 --->

03-09-2010, 12:35 AM	#1
touge_monster86 Stock Join Date: Mar 2010 Location: huntington beach Posts: 11	i lined the marks on the cam gears to the marks on the metal plate and had the crank mark set to zero. also have the cps with the drill mark lined up to the notch . i think that is right but it could be wrong. the only issue with the hole engine code is that its actually a 7mgte i swapped into an ae86 so im not sure if the code will show up on the cluster or not . and even if it did would the engine actually have to turn over and run in order for it to throw a code . man i racking my brain. it ran great right before i changed the head gasket

03-10-2010, 06:29 AM	#5
touge_monster86 Stock Join Date: Mar 2010 Location: huntington beach Posts: 11	the car is an 85 corolla but the motor is from a 91 supera.

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