what cause the tach jumps back and forth + no upshifting on WOT
09-09-2005, 12:47 PM
#11
3.0 BAR
Thread Starter
Join Date: May 2003
Posts: 6,279
Re: what cause the tach jumps back and forth + no upshifting on WOT
Originally Posted by bitchasscracker
if i remember your car doesnt have a stock tach right 
??
you probally bought a shitty pep boys one and it just bounces.....
my .02
??you probally bought a shitty pep boys one and it just bounces.....
my .02
FYI problem is sloved, the tranny works fine, but the tach itself is not, lol it the needle went crazy whenever i went pass 4K even if i rev it in neutral.
as of the not-up-shifting problem, it`s actually shifting fine but it takes f-o-r-e-v-e-r to hit redline (compare to a d16z auto) i and throught it is not shifting LOL
09-09-2005, 01:15 PM
#12
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: what cause the tach jumps back and forth + no upshifting on WOT
Tach signal is synthesized output from ignitor in distributor. AT shift pays attention to rpm feed IIRC whereas the engine deduces rpm based on CYP/CKP/TDC and so engine revlimit is not fiddled. Not entirely certain of the Civic stuff, but the Accord AT control units I was remanning for a while sure did.
Either your ignitor is bad, or G101/G151 aka thermostat housing ground sucks donkey *****. Smoke it over, see if it doesn't fix the problem.
Either your ignitor is bad, or G101/G151 aka thermostat housing ground sucks donkey *****. Smoke it over, see if it doesn't fix the problem.
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