asking for a friend.

the car has no spark. the coils are not getting the signal for the spark. he said the fues were fine.

the car has no tach.. well it has a tach i just wont work.

he had the ecu checked also....not it

list some things it could be.


1. cas
2. afm
3.
4..

 

check to see if the fuses have power to them, it could be a simple wiring isue. lastly check and clean all the grounds.

 

ill pass that on to him.

any others?

 

the last time i had that problem it was the "engine" fuse . the one in the fuse panel on the drivers side interior kick panel . chances are slim that its the culprit b/c that would be too easy and convenient , but theres always wishful thinking .

 

and he did check both fuse boxes right? the ones that control ignition and fuel are in front of the left front strut tower, the 2 nearest the engine but there is also a ECM fuse in the interior fuse box.

 

he said that he checked them and he had someone else look at them also.

 

ok well the first time i had that problem it was a fried ecu . Is he certain that its not the ecu ? does he have a spare he can try ?

 

he tried a new computer but that wasn't the problem

 

does he have a spare afm to try ?

 

well he doesnt have one.... but the car right now, is a rotary performance in margate fl.

 

and they can't figure it out ? honestly the problem has already been stated , it can't be many things . you , karack , and i ,we pretty much throw out what the possibilities are . Have him check the fuses again , I've come across a few that didn't appear to be blown but upon closer inspection i found a hairline crack . I can't think of anything else . I'll keep track of the thread . Im curious to know what the problem is .

 

yeah.. he says they have had it for a week. i think a few hours of trouble shooting could fix the problem if the car was here.

 

any others???

 

the guy that has it thinks that there is some sort of ignition cutoff switch or something is messed up in the wiring...but as far as i know there is NO switch and if there is i didn't touch it at all. and he says that the coil is getting voltage but the computer isn't sending a signal to it to spark....so he thinks it's the wiring.....i guess :\

 

then check the crank angle sensor .

 

 

"chef's chocolate *****" ..south park ... ^ looks like chef from south park ... lol !

 

There was a guy on here that went by the name HAILERS. I don't know if he is still around or not but try getting in contact with him or searching for posts by him. I know I there are a couple posts about this somewhere. I had a similair problem. I never really fixed my problem though. It just sort of went away, as odd as that sounds. My coils were getting power but no signal. Checked everything I could but didn't find a thing.I think that it is somehow related to grounding the car, but I can't be sure because mine fixed itself. Anyway, good luck.

 

alright

 

i thought that the AFM only controlled the fuel going to the motor and that wouldn't affect the actual spark? or am i wrong?

 

bump

 

no words?

 

I not 100% sure, but that sounds right to me.
Since it apparently isnt fuses or ecu, it sounds like its either the coil packs or the cas. Since both coil packs dieing at once is VERY unlikely, its most likely the cas. Make sure the connector is ok and that the its functioning right.

 

this is just a lot of talk if there is no subject vehicle to actually be testing things on.. try getting the car back from them if you think they are being worthless then we can help better rather than just tossing up random things for them to test and charging you even more.

 

Here's the thread for when I thought i wasn't getting spark: https://www.rx7club.com/2nd-generation-specific-1986-1992-17/car-wont-start-no-spark-need-help-soon-possible-442482/
In it Aaron Cake made the suggestion that the only way to actually test the fuses is with a continuity check, since you cant tell just by looking. Did your friend actually test the fuses, or just look at them. Just to be safe you could just replace the fuses that could cause there to be no spark.