recently i purchased a TII when I got it it wasn't running quite right..


so in my quest to solve the problem.. i decided i'd yank the emissions stuff...(block off plates and all) to simply things and eliminate unnecc headaches since emissions isn't a concern


i took out the rats nest, routed new fuel hoses and all the usual stuff...

car wont start now... i thought it was airleaks and stuff.. spent ages goin over and over it...but no..further investigation yielded I have no spark Trailing and Leading.. no spark at all in all 4

I went over and checked the obvious that i could think of... TPS plugged in, CAS plugged in, alternator is plugged in, AFM plugged in,Ground on front of engine is tight, ground on top of the intake manifold is tight, i did notice the Air temp sensor is broken.... but i doubt that will effect spark.. I tried loosening the CAS and turning it full left or full right with no effect...

I had spark BEFORE emissions removal, so I know something is up

funny thing is: when I had put the new fuel lines, i was checkin for leaks, primed it, seemed ok, i cranked it a few times just to see if it held and stuff.. and the car STARTED up! no UIM no AFM the thing was in pieces and I had air gushing in my face.. i was like WTF...

but now that I put everything back together... I have no spark..

I checked the ECU for error codes usind the LED method...

I'm getting L L L P which isn't listed on this site as an error code: error code checking

the car is in my garage which isn't at my house.. so when I go tonight, i wont have internet.. so i'd like to have the list of things to check ready, prior to goin...

i've heard of the method of pulling the cas and spinning it by hand to check for spark... what else?

thanks guys

 

The S5 (Kouki) ECU gives that code for the relief solenoid, but you have an S4..

Maybe check the connectors at the ECU.

 

dont pull the cas. check for +12V at leading coil. if you got that, then check for power at the cas plug. if you have power there too, you either have a bad cas, broken wire, or bad ecu. (or two bad coils, but i doubt that)

pat

edit: just thought of something.....someone confirm me on this, but i think the 7 may not spark when cranking...only when you let off the key. some cars are set up that way. i know for a fact that ive had more than one 7 not spark when i tried to test the spark, but then start right up when i cranked them the next time.

 

and what if i don't have power at the leading coil and/or cas?

the car has power.. the door beeps when it's open, the lights flip up and down.. the fuel injectos adn fuel pump are working no problem.. car cranks...

i've seen spark before when i laid the plug on the intake manifold... so i know u can for sure visually inspect it..

i was so fustrated and i even held the cordin my hand cuz i wanted to feel the shock... there was nothing

 

See if this helps:

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/not-geting-spark-need-info-406079/