i replaced coil pack crank sensor and cam sensor no spark what so ever. car was running for about ten min then lost spark checked wiring and fuses still no luck the injetors are not firing either any ideas?
not yet i wa goin to this friday this car is a dirt track racing car so i have to tow it to autozone to have it hooked up to code reader. some people think its the computer but i hope not
Pull the crank sensor and check it for damage. With the key on, check the center wire going to the coil pack for battery voltage.
i bought a new crank sensor and the middle wire that goes to coil pack has power when the key is on but the other 2 have none i think they should pulse when tring to start but it thy dont have and power. i hooked up dia machine and came up no data it would not read the car. it just may be the comp
The other two wires are trigger wires. You would have to check them with a voltmeter on the 'AC' scale. Depending on the polarity of the probes, the voltage will go up or down when the engine speed increases/decreases. Did you replace the old CPS because it was busted or just because there was no spark? The injectors supposedly fire from the signal the PCM gets from the cam sensor. That shouldn't prevent spark, though. Have you checked all of the fuses in the cabin and under the hood? I don't have my wire book un-packed yet so I can't tell you what fuse to look for. Also, I've seen an issue like this when the PCM doesn't get power. Does your 'SES' light flash once then stay on when you turn the key to 'run'? The PCM power relay is in the CCRM. The relay grounds are the most common cause of a no power to PCM issue. This is because that little ground box on the negative terminal is sensitive. Make sure the connection on this little box is clean and tight.
i replaced the old crank sensor cause it tested bad i checked all the fuses in the cabin and under the hood. the SES light used to be on before i lost spark now it dont even light up when turn key on like it used to. the connection on that little box is clean. this car is a dirt track car with no windows and it got rained on real bad night before this happened and has been rained on many times before and had no problem but i have had this car for 2years as a dirt track race car so i already ordered the new comp only 75 bucks prob wouldnt be a bad investment with how much water gets on it from washing the car rain and snow..lol. it gets abused i know..lol. ill let u know when i get the new comp is there any fuse links between comp and components that would cause this prob thanx alot iil let u know how it goes soon
It sounds like either the PCM is bad, the wiring to the PCM is bad, or the realy in the CCRM is bad. If the car still doesn't work after you put the new PCM in, let me know and I'll dig out my book and let you know what wires to test for PCM power and relay operation.
got the new comp still nothing lol this thing is gonna drive me nutz...lol would really be greatful if u could look for what wires an what relays to check and how to check them that would be great thanx in advance Bill
When you find the problem let me know what it is. I know someone else that is having the same problem. No fire, they have changed the crank sensor and CCRM. I've suggested checking the coil.
ya i know the ignition switch works cause i get power to the middle wire on coil pack when i turn the key on
ok guys hopefully you can help a brother out iv tried everything i can think of i can fix mechanical parts on anything but i get lost when it comes to wiring. my cars motor is pretty much. dead fuel pump wont kick on no spark at all!! fuses under dash for fuel injection was blown replaced it still no results found redid main ground it still no results bought new comp, crank sensor, cam senson and coil pack i have power to the coil pack when key is on and its the middle wire that goes to the coil pack but alot of stuff is dead no juice so i think i got a hell of an issue im about to take it to the shop i spent over 200 already and no results so if ya got any ideas let me know please.....Billl
would a bad ecu cut everything off that goes to motor? and engine light because it used to be on cause all the stuff i disconnected that i didnt need cause its a dirt track car but but the light used to come on when key was first turned to on position now it wont light up at all so if i can figure that out maybe the problem will be fixed