okay...the other day my car ran fine and then the check engine light came on...at the same time the car started to bog really bad when you press the gas too hard. i know that cell 43 means bad fuel or oxygen sensor, but we tested the oxygen sensor and its good...i have a new fuel filter,fuel pump, injectors, and fuel pressure regulator....my question is what else can it be?? it drives fine from a cold start but it acts like this when it starts to warm up....please help me....oh yea....i have an 89 rex with a 91 b18a...

 

I had that problem awhile back and it was a leak in my vacuum line that ran from my throttlebody to my MAP Sensor.... I replaced it and reset the ECU and never had the problem again....its worth a try...

 

thanks...i will try that...anyone else have any suggestions??

 

i though 43 was fuel suppy system . i have the same code after i swapped in a LS . i could never get it to clear .. im gonna check that vacum line tonight.

 

88-91 Civic/CRX

0 - ECU
1 - Oxygen Content
3 - Map sensor
5 - Map sensor
4 - Crank Angle
6 - Coolant Temperature
7 - Throttle Angle
8 - TDC Position
9 - No. 1 Cylinder Position (1.6)
10 - Intake Air Temperature
12 - Exhaust Gas Recirculation System (1.5 CAL:A/T)
13 - Atomospheric Pressure
14 - Electronic Air Control
15 - Ignition Output Signal
16 - Fuel Injector
17 - Vehicle Speed Sensor
19 - Lockup Control Solenoid Valve (A/T)
20 - Electric Load


this doesn't help does it?
are there supposed to me more?

 

i have an ls motor....but thanks for the attempt

 

oops...i missed the last sentence of your post
my bad

 

my car is still broken...more suggestions please....

 

take the o2 out at clean try to reset the comupter or just go buy a new one from auto zone they are like $40 bucks

 

if you take the o2 out dont touch it .. burn all the crap off with a blow torch .. but i just cleaned my 02 yesterday and its didnt slove the problem .

 

i tested the o2 sensor and it is good...and my fuel pressure is low

 

i replaced my 02 and lowerd my fuel pressure to about 35psi. i have cleared the code but im not exaclty sure what did it. however my car now sputters in low rpms.

 

Sounds like the same problem I was having with my Z24 right before the fuel pump took a ****. I know you said you just replaced it but maybe you got a bad one?? I would definately check the fuel pump pressure.

 

Don't the 91 ls engine have the same code as 91 crx engine. Just a thought
Sounds like it may be your fuel pump.

 

that s for fuel supply system it might mean its running too rich

on my DA i had that code always i couldnt get rid of it and frankly i didnt give a **** caus e i took out the chech engine light and the car always ran DAMN strong and i knew it was running a lil rich I only got the code after i installed a chip
and my friend who sold me the chip and designed and races in the SCCA said that it doesent effect performance...this was a B18a obviously

 

well please correct if im wrong but doesnt any check ingine code affect performance periord .. i thought that a check ingine code put the ecu in a "close loop" status.

 

thanks for the help guys......but still broken....yesterday when i was driving i pressed the clutch and tried to rev and the rpms wouldnt go up....

 

you should check your injectors, take them apart, and inside they have little filters that help protect your fuel from getting dirt into your engine, if you are missing them or they are smashed or damage, make sure you replace them, but what sucks is that they dont sell that little fliter seprate, your gonna have to buy the whole injector..

try that and see if your still bogging or not


[Modified by Sleepel2_Motol2s, 7:17 AM 2/5/2003]


[Modified by Sleepel2_Motol2s, 12:28 PM 2/5/2003]

 

i tried to put injectors off of my friends b16 and still got the same results...

 

have you checked the cap, rotor, coil? the code and problem could be unrelated .. alot of b18 swaps give 43 code .. mines did too .

 

i bought a brand new dizzy less that three months ago....but i think that it might be something with the fuel because i have low fuel pressure...

 

Well I will stand what I had already posted above....Your fuel pump.

 

i will check tomorrow but i dont think so...

 

how do you know your fuel pressure is low and how low is it?

 

my code 43 is back