Jun 132010
 

Ok,I have a 1992 honda civic 4dr dx with 93k on in. The following has been replaced: head gasket, timing belt, water pump, 02 sensor, distributor, plugs wires, cap and button, map sensor, exhaust, main relay, and ECM. Car is not blowing any codes and runs when it wants to. When it does run it runs great for a couple of days and then it will start by cutting out a couple of times and before you know it quits running all together. Will start back up after a while but will only Idle, and stall as soon as you touch the throttle or put it in gear

Jun 052010
 
1997 Honda Accord 4-cyl VTEC engine light is on. Autozone diagnostic tester displayed these possible errors/causes:
P0401 – EGR insufficient flow, possible EGR Valve, blocked EGR passages in engine;

P0171 – (1) Fuel system too lean bank 1 (Cly #1), large vacuum leak [I found a disconnected hose between valve cover (Cyl#1) and air intake], (2) Fuel system concern, (3) Ignition system concern, (4) MAF sensor faulty, (5) HO2S/AF ratio sensor fault.

P0453 – (1) Sensor circuit high voltage, (2) Open or short circuit condtion, (3) Poor electrical condition, (4) Faulty FTP sensor.

I don’t know where these sensors are located and whether I should change them out if other possible causes might produce the same errors. I found a hose disconnected between the valve cover at #1 Cyl and the air intake.

Can someone shed some light on what might be wrong and how I should proceed?

Julian

I looked for vacuum leaks and found a hose disconnected at the #1 Cyl valve cover. The other end was connected to the air intake cover. If I knew where the sensors in question are, I might be able to check the wiring and do some continuity and voltage checks.

Dec 282009
 

California: 1991 Honda Accord SE, A/T

 

 

HC

CO

NOx

 

RPM

Max

Meas

Max

Meas

Max

Meas

CO2

02

15mph:

1854

118

13

0.75

0.08

799

1206

15.2%

0

25mph:

1912

93

11

0.63

0.05

738

1211

15.2%

0

New O2 sensor, ran Seafoam, cleaned egr and ports, Egr function properly, Aftermarket CAT 2yrs old, CAT passed backpressure test and no rattling or smell, cleaned IAVC screen.

NOx levels dropped to low 900’s on pretest after cleaning egr ports. Still a hundred to high

Any ideas? Additives? Tricks to pass?

Dec 272009
 

hi i have a 2007 civic that i did a remote start in. i hooked up parking lights to a red positve wire at the steering column. turns out its an illumination wire and i think i burned a circuit because now the lights on the heater, shifter, and steering wheel controls dont light. where can i trace that circuit to?