I have a GMC PCM service # 16238212 for a 99 Topkick w/7.4L 454 gas engine; and was wondering if you are able to repair these PCMs/ECMs or have an equivalent I can replace it with? They seem to be similar to those used in your RV work. Just need a working substitute, no enhancements really needed. Thanks for any help.( Chris, 08/22/2022 )
We are not able to assist in providing this PCM. If you can find this PCM in a salvage yard or from a different type of vehicle that uses the same, we can likely program it to your vehicle for you.
1997 gmc 3500 cc dually. I fought this truck with the cats deleted and air pump disabled. Seems like it's lacking power towing my boat. I don't drive the truck daily so could send my ECM to you for tuning My question is would this eliminate the SES light for the cats P0430/20 and air pump ?? The truck does not need to be emissions compliant( Chris Ostenberg, 08/16/2022 )
If you send your ECM in, we can make the necessary adjustments you are requesting.
Will the UltraPower tune, give me the "best bang for my buck" performance increase? 1998 Winnebago Chieftain. What is the warranty?( Ken Fohringer, 06/03/2022 )
Yes, it definitely will. Next best upgrade you can make is the Banks TorqueTube headers (49073). We offer a 1 year warranty on the electronic module itself but we support the tuning itself for life.
After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. from your CUSTOM TUNING,ECM,
Please tell me: What is the best ( Power and Fuel Economy setup ) '' for new fuel injectors set '' for my vehicule, should you recommend ? thankyou( Raynald Blouin, 05/14/2022 )
We recommend these injectors: https://www.fiveomotorsport.com/bosch-oem-454-j-code-884-black-knight/
J'ai l'intention d'améliorer l'ordinateur de mon VR, par un model ULTRAPOWER mais avant d'acheter, j'ai besoin de savoir quels fuel injecteurs seront le mieux adaptés ( économie et rendement ) avec le nouveau module? Et si je devrai faire recalibrer mon ecm? merci( Raynald Blouin, 05/09/2022 )
The stock injectors are fine for our performance tuning. Any "recalibration" would require sending your ECM to us for programming changes.