So, I'm breaking up at 10psi no matter what gear I'm in. My afrEST vs my Wideband are way off when it starts to break up. I have no idea what's causing this issue and don't know where to look. I've included a log so anyone who wants to look at it can! Thanks for the help guys! If you need any...

I may be putting this inthe wrong forum so feel free to move it if need be. The issue that I'm experiencing is that I can not go full throttle or build over 15psi on my hx40. I've had someone who is an engineer for cummins and a fellow dsmer look at my logs (which I'm unable to post) and he 100%...

So I installed my new throttle body today and while doing my tps adjustment with link, I discovered another issue the car seems to be having. With both fuel pumps running, when I would ease the throttle in and tps would read 3.6v, both pumps would shut off!? Now if I eased up on the throttle...

Hey everyone, So I purchased a new 74mm S90 throttle body from extremepsi and am expecting to install it tomorrow upon delivery. I'm wondering that once it is installed how to go about the proper tps adjustment? Do I use the the regular 2g tps adjustment method or is it different? I've read...

Ok, so here is my situation...I installed, to my belief, a 2g maf! The numbers listed on this maf are 055/E5T05071/1517A! When we installed link, we set it up for a 2g maf and had difficulties with an idle tune! The O2 sensor would slowly slump to 0.0v and the computer never made and CombFT...

Ok, so here is the modifications I changed today! I replaced my 1G MAF with a 2G MAF! Installed a set of RC 550cc injectors! Made TRIPLE sure that all my wires were correct! So here is the problems that we are having now! Before the swap, I was pulling around 18psi of vacuum, now I'm closer to...

Ok, so I've been reading up on a lot of the "compressor surge" forums and every one has given a different answer! So, here is my situation...I just installed my VRSF FMIC and after doing so is when I started to notice the infamous "HKS SOUND OF DOOM" coming from my intake! I checked all my...

Ok, please don't answer to this post with "use the search button"! I have used it, read a few forums and still can not find a straight answer on what needs to be done. So, I own a '90 Plymouth Laser RS Turbo FWD and am planning on ordering a VRSF FMIC next weekend. Here are the questions I have...

Ok, so I was driving home this evening and had a serious motor issue occur! I left a stop sign, easily shifted 1st to 2nd, then 2nd to 3rd. Just as I was about to go to 4th...I felt something give in the motor, my oil pressure dropped from the midpoint between the two lines to the bottom line...

Ok, so I'm really tired of grinding and/or missing second gear completely when doing a 1st-2nd gear pull. I have a 1990 Laser RS Turbo, just broke 100k mi, basically everthing is stock! I'm looking at buying a new transmissions and have checked out both Shep Trans & Jack Trans. The only thing...

Ok, so I started off with my JVC head unit losing complete power (unit is bad), while checking my fuses, noticed a few were blown, so I replaced them. After I had removed the radio, I drove my car up the road and when I engaged the clutch...the car idled down IMMEDIATELY to around 500rpm and...

Walbro 255 LPH "High-Pressure" with Install Kit: Mitsubishi Eclipse 90-94 FWD Turbo Applications: Eclipse/Talon/Lasor 1990-1994 FWD Fuel Pump Model: GSS342 (High Pressure) Kit Model: 400-883 Our price: $95.00Genuine "MHI" Mitsubishi TD05H "EVO III Big" 16G Genuine Mitsubishi Our price...

Hey guys, I have a few questions that I can't seem to find the answers to. First, I have a '90 Laser RS Turbo FWD, 96K original miles, all maintainence has been kept. My upgrades are now a K&N Air Filter (no air can), "Semi-Hacked" MAS, Intake Tube, Forge Motorsports BOV (recirc), Autometer...

Hello, my name is Tyler and I'm from Indiana. I have recently acquired a 1990 Plymouth Laser RS Turbo FWD. This car has been extremely well taken care of, all the upkeep has been kept on this car and documented. The car is completely stock minus a silent muffler out back. Basically, this car is...