9 replies to this topic

[Hoosier Daddy]

no spark. 2 diff ecu's, no spark. no spark at coil. no signal to ignition mod. checked continuity from module back to ecu, continuity good. what would make ecu pull spark? bad cam sensor? how do i diagnose cam sensor? any other possibilities? thanks all

[Ihatespeedbumps]

Codes prior to swapping parts?

[Hoosier Daddy]

no. this is a re-install being started first time.

[Hoosier Daddy]

N E 1? the rpm sensor is fairly new. what can cause computer to pull spark?

[Black Betty]

did you put the sensor in upside down? if you need anything let me know im parting a 96R

[Hoosier Daddy]

pulled a P0120, throttle pos sensor. i'll run that one down next

[Cal3thousand]

Hoosier Daddy, on 02 October 2009 - 08:04 PM, said:

pulled a P0120, throttle pos sensor. i'll run that one down next

Look at the Fuel Injection relay. I had a no spark situation with the TPS ground circuit code that was caused by bad wiring to the relay. Its located on top of the fan shroud near the drivers side. Another thing you will notice is that with the key in the ignition in the II position, the check engine light will not light up as it normally does before starting. If you see the Check Engine light working like normal, its not the FI relay.

[Black Betty]

Hoosier Daddy, on 02 October 2009 - 08:04 PM, said:

pulled a P0120, throttle pos sensor. i'll run that one down next

if you needs i gots

[ajhehr]

check your crank sensor, also make sure you pinch any wires...

[Hoosier Daddy]

Cal3thousand, on 03 October 2009 - 12:21 AM, said:

with the key in the ignition in the II position, the check engine light will not light up as it normally does before starting. If you see the Check Engine light working like normal, its not the FI relay.

very interesting, will check. thanks for the feedback. i have another TB that i'm going to swap in and see if that helps