google scan9495. IIRC it is a free download but you have to buy a "cable" to interface your laptop and OBD1 data port on your car. It would have all the scan abilities and will help narrow down your search as to the "why". IMHO you need to have the ability to scan your car and a FP gauge to have one of these 20+ year old cars and self diagnose and or repair them...or have a thick wallet

 

Thanks. Until last night I had no PC only a mac. I’ll get a cable soon

 

I've never used it as I have OBD2 so just use a Actron HH scan tool but have read several threads about it for OBD 1 LT1's

Guy with screen name GARYDOUG wrote the software IIRC

Hope it helps out

 

Thanks ******. I saw this program the other day and was intrigued. I ordered a cable and it is on the way. I also just pulled all the injectors and primed the pump and found I have NO leaking injectors so that is not my issue.

 

I was smelling raw fuel a few minutes after turning off my car in the garage and also started smelling raw fuel in drive throughs when the wind was blowing from behind the car. It was always strongest at the left rear of the car. The problem was one of two things....either the EVAP canister or EVAP pressure control valve close to the canister. There was liquid in the EVAP pressure control valve when I checked it and since the canister was ~24 years old, I ordered another one for it along with a EVAP pressure control valve.

I had no EVAP code, but that solved my raw fuel smell issue. I did throw parts at it rather than properly diagnosing it, but given that I replaced all the EVAP components(and rotted rubber lines) a few years ago except for the canister....I felt the canister was a safe bet to replace.

 

On a side note, where the heck do I edit my signature line?

 

Great advice!

 

click the "user CP" tab, top upper left

 

I got my cable today and ran the Scan9495. I have attached the scan, but I need more time to ingest the data. Right off the bat I can see I have a DTC 18: Injector Circuit code and a DTC 83: Manual Reverse inhibit fault.

 

EEHack says it runs rich. Tuner on here says my bin is not accounting for the after market ram air for the MAF

 

Can you provide a driving log. The above log is only on idle and never goes into Closed Loop

 

https://drive.google.com/open?id=1Mt...9etjJUXRlPXWPU

 

BLM Cells 3 and 7 are very rich and need to be tuned . Do you have a copy of your tune that you can attach?

 

https://drive.google.com/open?id=1B0...3fd-kQTb8i3OXf

 

adjusted your MAF in the tune to clean up the Rich conditions from the log you posted. Flash this tune and then log again and post the new log file.

 

Thanks Frankie that is super awesome of you.

 

Will be a bit before I can post. Now I have an output shaft leak on the tranny.

 

Been a while and a long trip. Got the LE1 package from Lloyd, car apart and put back together. New tune, long tube headers and new O2’s and upon startup, my eyes burn from the fuel vapors. I do have an exhaust leak on the driver’s side and midway through the car that is getting fixed on Friday.

A preliminary scan is showing my right bank BLM at 160 and staying there until it goes into closed loop and the car is moving. Every other bank stays at 128 during idle. Obviously the exhaust leaks need attention first, but this thing still seems to be dumping fuel like mad.

 

Forgot to mention also have a new cam from LE with 1.52 RR. Does anyone know why so much fuel is being dumped so quickly? Still waiting on one of my retunes from my tuner...