Emissions Help!!!
They just have this boot thing that slids over the exit of the exhaust and acts like a vacuum. It sucks the exhaust in. they havent said anything about me not having any of my emission equipment..
But a thought just came... I have a massive exhaust leak.. like you can hear it form 20 to 30 feet away with the car idling. and since theyre machine has a vacuum do you think that the amount of exhaust gas leaking BEFORE the cat is setting me back this minute amount????
But a thought just came... I have a massive exhaust leak.. like you can hear it form 20 to 30 feet away with the car idling. and since theyre machine has a vacuum do you think that the amount of exhaust gas leaking BEFORE the cat is setting me back this minute amount????
Welp. Heres the update.
I went out and got the CRC pass fuel treatment and no my CEL is back on...
also I was told my IAT sensor was bad, replaced that since that was the LAST thing to do, andthat didnt fix it either...
Sooo going to get it scanned tomorrow. Question, is the scanmaster worth it? since I have a 95
I went out and got the CRC pass fuel treatment and no my CEL is back on...
also I was told my IAT sensor was bad, replaced that since that was the LAST thing to do, andthat didnt fix it either...
Sooo going to get it scanned tomorrow. Question, is the scanmaster worth it? since I have a 95
Ok. I went to AAMCO because they are the only ones that will scan a 95' for free. They said I had the following codes: 23 which is IAT, temp too low... I bought a brand new one yesterday (delphi form NAPA). 48 for the MAF, I think my K&N coulda caused that code, it was dirty. ( so I cleaned that and the MAF) and code 18??? I cant find that in my haynes manual.. but there scanner said it was for an injector... Um brainiac... OBD1 doesnt detect that... thats the update...
So I have a few questions..
Does anybody know the pins for the IAT Connector? mine is a pigtail so both ends are white. Which side on your sensor connector(PCM side) is black? which side is tan?
Also, the SES light only comes on at IDLE... is AAMCO confusing the IAT with the IAC???? I repaired the IAC wiring, and I had the IAC sensor out and IIRC I had to shove it back in..
I just want the SES to go AWAY!!!
Thanks,
-Mark
So I have a few questions..
Does anybody know the pins for the IAT Connector? mine is a pigtail so both ends are white. Which side on your sensor connector(PCM side) is black? which side is tan?
Also, the SES light only comes on at IDLE... is AAMCO confusing the IAT with the IAC???? I repaired the IAC wiring, and I had the IAC sensor out and IIRC I had to shove it back in..
I just want the SES to go AWAY!!!
Thanks,
-Mark
Also. Im throwing a code 48 MAF sensor circuit...
How do I go aobut fixing that??? The maf is only 1 year old. I took it apart 2 days ago and painted the metal body. Now im throwing a code....
Also. I found code 18 on shbox's website. How do I go about fixing that? Injector circuit???
How do I go aobut fixing that??? The maf is only 1 year old. I took it apart 2 days ago and painted the metal body. Now im throwing a code....
Also. I found code 18 on shbox's website. How do I go about fixing that? Injector circuit???
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OBD1 is pretty cut and dry for diagnosing. Usually something has to be completely messed up to set a code. You said you repaired your engine harness because of some frayed wires. I would look further into the wiring for each component that is throwing a code.
Check power and ground to each connector (MAF, injectors, IAT, IAC).
Check power and ground to each connector (MAF, injectors, IAT, IAC).
Its NEVER thrown a MAF code until just after I painted it... and since I dont havew a scanner Idk what I fix and what I didnt...
Ok. Im getting pissed.
Went today to test and I get this.
HC: My car: 1.90 Limit: .80
CO: My car: 21.49 Limit: 12.00
NOX: My car 4.11 Limit: 2.00
Failed every single test... AGAIN...
I redid the wiring on my IAT according to shbox's site. Reset the PCM by disconnecting the battery and started it up. NO DTC's at all. Leave to emissions, waiting in line... POP SES light comes and I fail once again...
I need help..
Thanks in advance...
-Mark
Ok. Im getting pissed.
Went today to test and I get this.
HC: My car: 1.90 Limit: .80
CO: My car: 21.49 Limit: 12.00
NOX: My car 4.11 Limit: 2.00
Failed every single test... AGAIN...
I redid the wiring on my IAT according to shbox's site. Reset the PCM by disconnecting the battery and started it up. NO DTC's at all. Leave to emissions, waiting in line... POP SES light comes and I fail once again...
I need help..
Thanks in advance...
-Mark
Another update.
I pulled the engine harness out again.
Found that the IAT and the MAF wiring was messed up, but instead of fixed just covered by heat shrink.
So I fixed the MAF waiting on more automotive wire from summit to do the rest of my repairs. I added wiring to I think 5 injectors, the crappy stuff from AutoZone. So Im ordering new MSD Injector Clips and gonna replace all 8 of the Injector clips. Also replacing the MAP plug, ALT plug, IAC plug and the VSS plug with new connectors.
And yes I solder and heat shrink everything. Note the sensors that throw codes are repairs I havent made
So after I make all these repairs and wrap it all up and put it back in the car it should run better and hopefully that stupid SES light will stay off
-Mark
I pulled the engine harness out again.
Found that the IAT and the MAF wiring was messed up, but instead of fixed just covered by heat shrink.
So I fixed the MAF waiting on more automotive wire from summit to do the rest of my repairs. I added wiring to I think 5 injectors, the crappy stuff from AutoZone. So Im ordering new MSD Injector Clips and gonna replace all 8 of the Injector clips. Also replacing the MAP plug, ALT plug, IAC plug and the VSS plug with new connectors.
And yes I solder and heat shrink everything. Note the sensors that throw codes are repairs I havent made
So after I make all these repairs and wrap it all up and put it back in the car it should run better and hopefully that stupid SES light will stay off
-Mark
Registered User
Joined: Oct 2008
Posts: 1
Likes: 0
From: Tempe, AZ
What is the rating of the fuel injectors that you are running? My 95 LT4 M6 Firehawk was failing miserably too, almost the exact same numbers you had, swapped out the 38# injectors for 26# and it passed with flying colors.
