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ASE Master Tech 35yrs
ASE Master Tech 35yrs, ASE Master Auto Tech
Category: Car
Satisfied Customers: 2013
Experience:  ASE Certified since 1972,Master Auto tech,Heavy Truck Tech, foriegn and domestic
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what tells the injectors how much to spray when cranking

Customer Question

what tells the injectors how much to spray when cranking the car wont start injectors sometimes spray and other times not get codes 1300 1305 1310 1315 not sure what and where to find parts to replace the car is a 2000 toyota celica with a 1.8liter replaced fuel pump and the pressure regulator in the fuel pump assembly getting lots of fuel to fuel rail but not enough spray replaced the injectors and still nothing
Submitted: 2 years ago.
Category: Car
Expert:  ASE Master Tech 35yrs replied 2 years ago.

ASE Master Tech 35yrs :

Glad to be of help. The PCM controls when and how much according to the sensor input it gets from the sum of all the sensors. The cam sensor gives the signal as when to fire the injector. When cold, the coolant sensor is the main factor of fuel mixture. When hot, the O2 sensor is the main influence for air/fuel mixture. The crank sensor give the signal as to when to fire the spark plug and in some vehicles it also acts as a cam sensor. What is the year, make & model of your vehicle and how many miles on vehicle?

Customer:

2000 toyota celica 1.8liter not sure on miles engine was replaced once and ran fine until one day started to back up and it stalled and has not started since

Customer:

if i unbolt the fuel rail and dump fuel in engine starts and runs but when fuel rail is bolted down engine will not fire over

Customer:

once running with fuel rail unbolted computer popped codes 1300 1305 1310 1315

ASE Master Tech 35yrs :


These codes indicate No IGF signal to ECM while engine is running. The trouble areas are:


Ignition system


Open or short in IGF1 or IGF2 and IGT1 - IGT8 circuit from


ignition coil with igniter to ECM


No.1 - No.8 ignition coil with igniter


ECM


ASE Master Tech 35yrs :

Check out this forum link and download the diagnostic PDF: http://forum.ih8mud.com/100-series-cruisers/454017-cel-dtc-check-engine-light-but-no-codes.html

Customer:

checked voltage between all circiuts and they were within specs

ASE Master Tech 35yrs :

If all circuits test good, Replace ignition coils with igniter.

Customer:

are the igniter in the coils on this model

ASE Master Tech 35yrs :

Yes, you can get them here: http://www.am-autoparts.com/Toyota/Celica/IgnitionCoil/AM-31710963/520458.html

Customer:

ok i will try this how can i reach you if i need more info and this does not work

ASE Master Tech 35yrs :

Just log into this question, they will notify me.

Customer:

ok thanks

ASE Master Tech 35yrs, ASE Master Auto Tech
Category: Car
Satisfied Customers: 2013
Experience: ASE Certified since 1972,Master Auto tech,Heavy Truck Tech, foriegn and domestic
ASE Master Tech 35yrs and 5 other Car Specialists are ready to help you
Expert:  ASE Master Tech 35yrs replied 2 years ago.
Let me know if you need more help.

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