92civeg

i know its a long post but PLEASE HELP ME OUT

I have a 92 civic with a 92 jdm b16a and Ive had the swap for about 2 years with no problems at al until now.

I was driving to work two days ago, i had been driving for about 30 min no problems at all, so im about 5 min form work ( driving at about 3000 rpm's in 5th) and my cel comes on ( the car isn't running any different that it normally does) so i pull over pop the hood and everything seems to be in order so i turn the car off, turn it back on and there is no more cel ( which means its a soft code right?) ok after work i drive to school and them home and i didn't get a cel during the 40 min drive. So i just brushed it off thinking it wasn't important.

Well the next day i drove to work no cel, but as soon as i get off work start my car, bam theres the code so i pull into one of the bays and go to jump the ecu i get two long flashes and then a short one code 21 right?
ok so i grab my manual and it says a code 21 is for a vtec solenoid, i check all the connections and there good. i didn't want to be late for school so i tried resetting the code and it didn't go away so i drove it to school no problems engaging vtec and its running fine. I come out of school and theres no code. The next day i get no codes in the morning but as son as i get out of work it comes on for the drive to school and then its off when i leave school, it may sound stupid but the only time its on is when its hotter in the middle of the day, im stumped i have no idea what to do

please help

Andres-eh2

I have the same problem. As i drive to school i get a CEL and the car bogs like crazy. I pull over, shutdown and reboot, lol, and it goes away.

We do not have the same problem b/c i believe my cat is messed up. just thought i share my CEL pain with you.

BTW can the CEL be checked without shutting the car off b/c i wanna know if you can do it before you shut off and it goes away.

92civeg

please anyone,

and if its a bad solenoid which one would i order for a 92 obd1 jdm b16a?

handa

ah i had this problem before. it was the knock sensor. i wired it up and then it never does it again.

i'm using a stock p30 ecu on my b16a that is.

do this...when the CEL light comes on, find out what code it's throwing..then we can go on from there.

EDIT:

so it's throwing code 21 on hot days.....sounds like a wiring issue of some sort. when was the last time you changed oil? i'm just throwing ideas.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">BTW can the CEL be checked without shutting the car off b/c i wanna know if you can do it before you shut off and it goes away.</TD></TR></TABLE>

i do it all the time...leave the car on and check the CEL.

project_mercy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92civeg &raquo;</TD></TR><TR><TD CLASS="quote">please anyone,

and if its a bad solenoid which one would i order for a 92 obd1 jdm b16a?</TD></TR></TABLE>

Off a USDM Del Sol VTEC.

I'm going to guess that it's oil pressure though.

djwest24

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

I'm going to guess that it's oil pressure though.

</TD></TR></TABLE>

ditto.

92civeg

ok the code hasn't been thrown for the past 2 days of driving, oil level is good and i found a page of a troubleshooting flow chart but had to get it for a dohc del sol, will it matter that that's obd2 and mine is obd1?

92civeg

ok it hasnt thrown the code for about a week until this morning, it threw the code after about 10 min of driving. but when i left work it didnt come on


im really stumped and its pissing me off

9prelude0

anyone have a b20a5 or b21a1 engine for sale???

00EckoSI

you found aq post from 6 years ago and ask this? first of all its the wrong section to post this too..2) why dont you read the rules of the forum and how to use it before u post and make ur self look like an idiot..why dont u check the market place for things forsale