My buddy, (who won't sign up on honda-tech) is having an issue with his car.

He recently bought a 97 Civic DX with a B18b1 engine.
His ECU is a PR4

He has a CEL on, but unfortunately someone 'cut' or removed the connector where you would plug the obd2 scanner in.

I gave him instructions on how to retrieve the CEL (jumping connector near ECU).


His CEL comes on, flashes for one second (meaning 10) then a 2.5 second break, then 1 long flash and it just keeps repeating. (1 second, 2.5 break, 1 second, 2.5 break etc)

What would this indicate?



I don't think it would be code 10 (intake air temp sensor)

Thanks in advance.

 

How To Retrieve Check Engine Light (CEL) Codes/List of OBD1 CEL Codes
10 IAT - intake air temperature sensor

So it flashes Code 10 but it isn't code 10? Is that what you are saying? What is your reasoning behind that?

 

If it just continues to flash 1 (code 10) and repeats that just means it's code 10? Wouldn't it just stop after 1 long flash?


I'm not sure what the code is, just want to make sure were reading/deciphering it correctly.

I've been doing it over the phone with him

 

Like he said code 10

 

edit:

code 10.

How would we specify whether its one of these?

P0111 Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage

 

Good luck getting the car threw emissions with the DLC/OBD2 plug cut off.

 

you can't. gotta run your own tests on it.

 

You sure its a PR4 ECU? Thats for an OBD0 90-91 Integra.

 

Yeah he sent me a picture of his ECU.

and your totally right, the only plus side for him is that he lives in Florida, and they don't require inspections.

I guess he has from now til whenever he moves back to NY to get it figured out.


I told him to go to the junkyard and get one out from another car and wire it to his.


Which ecu is he supposed to have? Is the plug missing since the ecu is for an obd0 engine?

 

I had him check and see which motor he had (by checking about the exhaust port) He said he has a 96.


If he has a 96, wouldn't he need a P75? Would he just need to swap ECU's? What else in involved?



EDIT: I called Phearable and they said some PR4's came in OBD1 which would make more sense. So, if his car is obd1 (and most likely using a step down harness), then this CEL is still code 10?

 

Where could I find which wires go into the Data Link Connector?

 

Scratch all of this.

Apparently, the IDIOT from Advanced Auto Parts, who originally told my friend that the DLC was "cut-off" was wrong. I had my friend send me a picture, and his DLC is fine. He has some spare wires that are spliced and not connected to anything, but that's a different story for a different day.


Last question, if he is running obd1 in his car, would he just use the obd1 code reader?

 

he could, but i don't know off any people off hand that have one other than the dealer. it is the same as jumping the connector though.

 

sounds like the problem could be that he is running an obd1 ecu on an obd2 car. the IAT sensor was in different location between the two. is the iat plugged in? is it in the intake arm or on the intake manifold?

 

yeah but I believe he has the proper step down harness.

I believe so, I do believe it is plugged in. I think his is in the intake arm, (isn't that obd2 location?)


He went to advanced auto parts again, they plugged the obd2 code reader in and couldn't get a reading.

 

obd2 reader won't work in an obd1 ecu. you already know the code so start focusing on that

 

ya cel is doin the exact same thing 1 long flash then nutting for 2.5 sec than 1 long flash then 2.5 secs an just keeps doin this i feel like its not a code before it would blink an stop wen done goving codes now it just keeps doin it after replacing my non vtec harness to a vtec harness my only sensor that was diff was the intake air temp but i wired that rite for sure thanks for any advice

 

3 year old thread

Make your own thread. Do not threadjack. Do not necrobump.

 

get a life yu loser came on just to rite that ******* find suttin to do with yur self

 

thread jack yous peaple come out with the funniest **** i dnt sit on this **** everyday to see dates buddy i didnt even kno that now go sit on the internet an jerk off

 

https://honda-tech.com/honda-civic-d...sting-3002401/