I installed a Howell 50 state TBI system in my 1989 Jeep Grand Wagoneer with high altitude emissions (5300 feet above sea level). The system is not running great and I have replaced all vacuum lines, tried capping off all accessories to locate vacuum leaks, new vacuum charcoal canister, new EGR, new HEI distributor/ignition, new plugs/wires.
The last items installed were charcoal canister 3 weeks ago and high altitude Egr with 64 washer one week ago. I think that shortly after installing the canister, but not sure of exactly when this started: I started getting a code 44 (lean mixture) but was blowing carbon out the tailpipe and the O2 sensor was fouled with carbon.
I spoke to Troy at Howell and he told me to check fuel pressure and that I would need a scanner to collect live data.
I would like some advice on scanning software. I am about to replace my cell phone (android) so I would rather get a windows based program for my laptop (I have Windows 10 and Windows 7 laptops) and an ALDL to USB cable to scan sensor data to try to figure out what is wrong with my Howell system. Hoping to spend as little as possible as I will use this once or twice to get the vehicle working and won't use it again. I am not planning on reprogramming the chips, just trying to diagnose.
I am sure that there is lots of advice on how to troubleshoot or fix my system, but mostly trying to figure out how to read and record the sensor data right now. I have used a cable and Forscan software on my Windows 10 laptop for my 2012 Ford Expedition and it works great for that vehicle.
Thanks in advance.
The last items installed were charcoal canister 3 weeks ago and high altitude Egr with 64 washer one week ago. I think that shortly after installing the canister, but not sure of exactly when this started: I started getting a code 44 (lean mixture) but was blowing carbon out the tailpipe and the O2 sensor was fouled with carbon.
I spoke to Troy at Howell and he told me to check fuel pressure and that I would need a scanner to collect live data.
I would like some advice on scanning software. I am about to replace my cell phone (android) so I would rather get a windows based program for my laptop (I have Windows 10 and Windows 7 laptops) and an ALDL to USB cable to scan sensor data to try to figure out what is wrong with my Howell system. Hoping to spend as little as possible as I will use this once or twice to get the vehicle working and won't use it again. I am not planning on reprogramming the chips, just trying to diagnose.
I am sure that there is lots of advice on how to troubleshoot or fix my system, but mostly trying to figure out how to read and record the sensor data right now. I have used a cable and Forscan software on my Windows 10 laptop for my 2012 Ford Expedition and it works great for that vehicle.
Thanks in advance.
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