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MAP sensor again or so I thought

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I had a bad MAP maybe 2 or 3 months ago so ordered a SMP MAP from Rock along side the long steering joint, long story short, the steering joint bashed a hole in the box and on arrival no MAP, it had simply fallen out somewhere in the well over 3kmiles to get to me, to be fair Rock sent a replacement straight away, actually within the very same day as the delivery day, cured the no boost problem no bother

 

Fast forward 2 or 3 months and the same deal, intermittant no boost then everything all good for a indetermined time then no boost and NO power

I have been running my quad on LVL1 stock with boost fooling due to the damn cost of fuel here in the uk, ordered a new MAP 2 days ago with a view to a warranty claim with rock later now here comes the head scratcher, I thought " OK I'll try the quad on a higher setting" set it to LVL 4 and up to now no boost codes, check engine or no power...... WTF  I cannot see how a higher setting on the quad gets rid of a MAP sensor fault, to be fair I haven't checked voltages or continuity yet

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Update

 

I've been running on all levels between 4 and 8 and everything is fine, currently on lvl 5 no codes/ check engine light I'll try putting it back to 1 and see

Isn't Level 1 for power reductions?  Valet mode?  Copied this from the Quadzilla site:

 

image.png.e7e5b131df07ab050bec5d6d831b9bd0.png

 

 

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Yes it is, I should have said lvl0  not 1 sorry

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  On 4/29/2023 at 7:03 PM, wil440 said:

I have been running my quad on LVL1 stock with boost fooling

 

Sorry level one is Valet mode. Valet mode locks to the setting on the setting page and doesn't provide any additional fuel. I'm not sure you get any timing while on level 1. You should be on Level 2 which is stock fuel with timing. Level 2 caps out the fuel table to just 100% so no additional fuel above 100% will be given.

  • 1 month later...

Could no power no boost point to stock injectors being plugged up pushing eratic fuel spray.  

 

Then bumping fuel parameters regains power and boost

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.