1988 crx dx

check engine light will randomly come on for no reason while driving down the highway and some times when I come to a stop at a light.

It started this s.hit about a year ago and I bought a used throttle body and replaced it and that cured it until now. now it's starting it's s.hit up again.

any ideas.

 

Sounds like an o2 sensor. do you know how to pull the codes?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MooGoCow3 &raquo;</TD></TR><TR><TD CLASS="quote">Sounds like an o2 sensor. do you know how to pull the codes?</TD></TR></TABLE>yeah, im gonna have to wait till it does it again, then pull over and check the code. I just installed Megan headers a couple of months ago and destroyed the stock O2, so I installed a new Bosch O2, so it shouldnt be that. (check engine light just started other day). Can bad gas cause it???

 

is it obd 0 or 1?
I'll put my money on the bosch o2 sensor if that's the code you get.

 

Check the code now, the ecu stores it. you will see the last code whenever you want, even if the light is not on now.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TEXREX88 &raquo;</TD></TR><TR><TD CLASS="quote">Check the code now, the ecu stores it. you will see the last code whenever you want, even if the light is not on now.....</TD></TR></TABLE>

will do

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MooGoCow3 &raquo;</TD></TR><TR><TD CLASS="quote">is it obd 0 or 1?
I'll put my money on the bosch o2 sensor if that's the code you get. </TD></TR></TABLE>

why do u say its the Bosch sensor? its brand new.

 

its throwing a 17 CEL. just check it. what is that?

 

What ECU are you running?

17 VSS - speed sensor

Checkout this general code list:

http://rywire.com/store/faqdes...3435a


Modified by TEXREX88 at 2:05 PM 9/24/2006

 

its possible that your speedo cable is loose...make sure its fastened tightly

 

The following is a list of the ECU diagnostic trouble codes for OBD0 and OBD1 computers.

Article Content:
1 O2A - Oxygen sensor #1
2 O2B - Oxygen sensor #2
3 MAP - manifold absolute pressure sensor
4 CKP - crank position sensor
5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
8 TDC - top dead centre sensor
9 CYP - cylinder sensor
10 IAT - intake air temperature sensor
12 EGR - exhaust gas recirculation lift valve
13 BARO - atmospheric pressure sensor
14 IAC (EACV) - idle air control valve
15 Ignition output signal
16 Fuel injectors
17 VSS - speed sensor
19 Automatic transmission lockup control valve
20 Electrical load detector
21 VTEC spool solenoid valve
22 VTEC pressure valve
23 Knock sensor
30 Automatic transmission A signal
31 Automatic transmission B signal
36 traction control found on JDM ecu's
41 Primary oxygen sensor heater
43 Fuel supply system
45 Fuel system too rich or lean
48 LAF - lean air fuel sensor
54 CKF - crank fluctuation sensor
58 TDC sensor #2
61 Primary oxygen sensor
63 Secondary oxygen sensor
65 Secondary oxygen sensor heater
71 random misfire cylinder 1
72 random misfire cylinder 2
73 random misfire cylinder 3
74 random misfire cylinder 4
80 Exhaust Gas Recirculation insufficient flow detected
86 ECT Sensor (Engine Coolant Temperature) circuit range / performance problem
90 Evaporative Emission Control System leak detected in the fuel tank area
91 Fuel Tank Pressure Sensor low input
92 Evaporative Emission Control System insufficient purge flow

source:
http://rywire.com/store/faqdes...3435a

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88crxhfb16 &raquo;</TD></TR><TR><TD CLASS="quote">why do u say its the Bosch sensor? its brand new. </TD></TR></TABLE>
Well they tend not to measure up to Honda standards (as many other aftermarket electrical parts).
But since it's not the problem right now rock on!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TEXREX88 &raquo;</TD></TR><TR><TD CLASS="quote">What ECU are you running?

17 VSS - speed sensor

Checkout this general code list:

http://rywire.com/store/faqdes...3435a


Modified by TEXREX88 at 2:05 PM 9/24/2006</TD></TR></TABLE>

stock ecu

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX &raquo;</TD></TR><TR><TD CLASS="quote">its possible that your speedo cable is loose...make sure its fastened tightly</TD></TR></TABLE> which end. or both???

 

both