just swapped in a new b20b engine and the tach was working fine until the other day my car shut off due to a lose battery cable..and now my tach doesnt work. but my entire cluster works besides the tach now. i have a p75 ecu in it with an obd2b to obd1 conversion harness. everything is good to go i just dont get why my tach is not working. anyone s help would be much appreciated as i do dont wanna spend money on a new cluster or conversion harness just yet.

 

all you honda guys out there dont have anything to say about this...damn thats pretty sad man

 

Bad ICM, tach blue wire, or tach

Start by having the ICM tested

 

will do that tomorrow....and if thats bad then ill have to replace it and check a bunch of other parts like my starter and igntion

 

Does the car start?

 

yes car starts...but honestly it chooses when to start. i was going down the road today driving it and it turned off for no reason. then i couldnt start it by turning the key i had to bump start it, like im gettin a short somewhere but i have no idea where. it will randomly turn off when its warmed up like the car doesnt like to idle very well, and when the cars cold it runs perfect and stays on so im at a loss trying to figure out what to do and what to buy to get my car running properly again

 

Starter has nothing to do with keeping the engine running, when the car doesnt wanna start does the fuel pump prime?

 

fuel pump always primes...never had it not do its thing. just having problems starting it back up once the car dies on me...

 

also wondering if you could tell me where my icm is located at? thanks

 

Inside the distributor:

 

awesome RonJ@HT thanks for the quick post on that....also i have had a 50A fuse for my ignition inside my engine bay fuse box so i think that miught be my problem im gong to switch it back to the called for 40A fuse and see where that gets me ...do you have any input on that?

 

Install the correct 40A fuse even though it won't solve your problem.

 

yeah i did install the 40A and haha my problem is still there ima try and buy a new ignitor for my distributor, its wierd though when my car shut off that day i saw a little bit of smoke coming from behind my steering wheel by my ignition, and then me being dumb i tried to start my car after that and i was turning the key there was smoke again coming from the same spot..so im thinking my ignition might be done or the wiring to it is just worn out now... need more of your input on this problem RONJ@HT you have been super helpfull

 

LOL!

+2 at that, RonJ@HT is a god damn genius when it comes to these little turd cars we drive! He knows more than a good amount of us put together I'm sure.....

 

well got a new dizzy today and still my my car runs a bit better but my rpm gauge still doesnt work. i wonder if me having an si engine harness has anything to do with my gauge not working. then again it worked before so idk what else to do except for bujying a new gauge cluster

 

i think i figured it out its my ignition....there was smoke coming from it when my car suddenly shut off that day so ima replace the harness for it and see if my car stays on....

 

wasnt my ignition i just replaced the harness that goes to it with a new one..and car starts up fine...hmm im stumped on this one i guess next step is to get a new gauge cluster and see if my rpm tgauge wants to work again