E99 7.3 xle4 to nvk5 pcm ?'s

[TyCorr]

I put a NVK4 in my E99 without issues. Putting a e99 pcm in late 99-2003 7.3s will turn on the SES light.


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Ive done this multiple times. The "guy" that cut my harness instead of the ziptie holding it together is running an nvk versus the e99. The eclb e99 i bought last year and flipped with a 38r, 160/30s and vb is rinning an nvk 4 and it works really well.

Ive never put an old pcm into a newer pcm.

 

[10shots]

The DPC-422 also turns on your CC dash light. xle# (DPC-402) does not.

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Didn't work for me , I installed NVK4 dpc 422 in my early 99 , pulled the instrument cluster and checked the bulb ,Wish it would work ,really like how it runs and shifts now , in the process of manually checking fuel mileage , today went little over 200 miles on a quarter tank , not filling up till here's about a quarter left , the lie o meter saying 19.3 right now . Replaced the cps and the pcm at the same time , replaced the gray sensor with the dark gray earlier model

 

[10shots]

Didn't work for me , I installed NVK4 dpc 422 in my early 99 , pulled the instrument cluster and checked the bulb ,Wish it would work ,really like how it runs and shifts now , in the process of manually checking fuel mileage , today went little over 200 miles on a quarter tank , not filling up till here's about a quarter left , the lie o meter saying 19.3 right now . Replaced the cps and the pcm at the same time , replaced the gray sensor with the dark gray earlier model

Hand calculation same fuel staition same pump 394 miles 23.15 gallons and didn't just let it click off , force fed it , 17.01 miles to a gallon e99 4 door long bed dually automatic transmission 373 gear mixed driving not over 69 miles an hour . No chip , banks 3.5 exhaust s&b intake nvk4 pcm

 

[TyCorr]

Hand calculation same fuel staition same pump 394 miles 23.15 gallons and didn't just let it click off , force fed it , 17.01 miles to a gallon e99 4 door long bed dually automatic transmission 373 gear mixed driving not over 69 miles an hour . No chip , banks 3.5 exhaust s&b intake nvk4 pcm

Thats not too shabby. I can get 20 but thats on a tollway setting cruise at 70

 

[10shots]

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[10shots]

Nvk4

the e99 PCM used a external bato whereas the 99.5-01 has a internal one. So as to not send a different signal to the PCM in a e99 I always unplug it when swapping to the nvk/pmt PCM. Honestly it isn't tied to performance and I don't think it needs to be unplugged it is just something a mentor taught me.

Sometimes I have had trucks that have hard shifting and customers complain of it. I have had to learn a lot about what sensors tell the PCM and how it responds to the demand.



Moss Diesel Service

I would like ask you a few questions about this ,,,my early 99 has a nvk4 pcm and feels like it shifts hard , also i took a different nvk4 pcm out is a friends truck and it runs different, actually runs stronger ,for what ever reason . I’m thinking my nvk4 had been updated to nvk5 , but will this Baro being plugged up cause a hard shift , seems my 2-3 shift is harder than it should be