m00nr0ck Si

my brother just put a new distributor in his 00' si and now the tach is dead....any ideas? it is a jdm b16a w/ a obd 2 to obd 1 harness....running the jdm obd1 ecu...

JDMlyfestyle

ive bought brand new distributors before and they were already bad. Id try another distributor.

m00nr0ck Si

well the car runs great....the tach just does not work....I think the engine harness is from a B16A and the harness from the ecu is from the 00 si... and then its got a obd1 conversion harness ...so Im thinking that the dizzy might have been from an obd1 b16A and the one he got to replace it is from a 00si.....holy crap thats alot of mismatching....

BTW is the 00si dizzy 1 plug and is the b16A 2 plug?

JDMlyfestyle

you cannot plug in a OBDI dizzy into a OBDII plug. or vise versa

Most likely his tach wire came loose or that part of the ICM has gone bad.

if its a brand new dizzy from a parts store.. take it back because its not working 100% so its defective and they got to replace it

m00nr0ck Si

okay its a obd2 2000 Si harness,2000 si dizzy......I just found that out by searching
amazing....

is there any wires that have to be moved on the dizzy plugs when using the obd1 conversion harness with a jdm b16a ecu....?

Maybe the bastard is bad....

b18ccivics

on a 2000 si your tach signal comes from the ecu, not the dizzy like on 98 and older cars. If you use a conversion harness the signal comes from pin a21 when you use an 0bd1 ecu.

m00nr0ck Si

its has to get its signal from the dizzy at some point....Im going with jdmlifestyle on this one.....its got to be bad.....Im pretty sure its a rebuilt dizzy from napa ...
thanx for the replys though...

JDMlyfestyle

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18ccivics &raquo;</TD></TR><TR><TD CLASS="quote">on a 2000 si your tach signal comes from the ecu, not the dizzy like on 98 and older cars. If you use a conversion harness the signal comes from pin a21 when you use an 0bd1 ecu.</TD></TR></TABLE>

sorry but the signal gets sent to the ECU from the ICM the same way it did in all 88-00 Fuel Injected Honda's B D H F series motors

b18ccivics

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMlyfestyle &raquo;</TD></TR><TR><TD CLASS="quote">

sorry but the signal gets sent to the ECU from the ICM the same way it did in all 88-00 Fuel Injected Honda's B D H F series motors</TD></TR></TABLE>


you are wrong sir, look at a 99-00 si ex and hf (i have worked on them all) the dizzy has a blue wire coming out of it, but there is no wire in the harness for it to hook to.

and on 92-95 civics the blue tach wire doesnt even hook to the ecu.

dont post if you dont know.

wtfitzsoda

up for reference