Tech Tip: Nissan Truck has MIL On, Stalls

Tech Tip: Nissan Truck has MIL On, Stalls

Use this bulletin if a 1996-1997 Nissan truck will not maintain idle or idles roughly after an engine cold soak and/or the MIL is on with DTC P0400 stored in the ECM. A countermeasure EGR valve is available to resolve such incidents if the cause is a sticking EGR valve.

Affected Vehicles: All 1996-’97 Nissan trucks

Use this bulletin if a 1996-’97 truck will not maintain idle or idles roughly after an engine cold soak and/or the MIL is on with DTC P0400 stored in the ECM. A countermeasure EGR valve is available to resolve such incidents if the cause is a sticking EGR valve.

Service Procedure
With the engine cold, perform an inspection of the EGR valve as follows:

1. Apply vacuum to the EGR valve with a hand vacuum pump, then release the vacuum (see Figure 1).

2. Check that the EGR valve opens when the vacuum is applied and closes when the vacuum is released.

a. If the EGR valve sticks open or does not open and close smoothly, replace the EGR valve with the countermeasure EGR valve and gasket.

b. If the EGR valve opens and closes smoothly, refer to Trouble Diagnosis in the EC section of the appropriate service manual to diagnose this incident.

Technical service bulletin courtesy of ALLDATA.

For additional information, visit www.alldata.com.

You May Also Like

Stellantis Increasing Production of Electric Drive Modules

The company will add EDM production in Szentgotthard, Hungary, targeted to begin in late 2026.

Stellantis N.V. announced it intends to increase production capacity of electric drive modules (EDMs) by adding production in Szentgotthard, Hungary, targeted to begin in late 2026.

The €103 million investment in Szentgotthard, including grants and contributions from the Hungarian government, is the latest example of Stellantis’ commitment to transforming existing facilities for its electrified future, the company said.

Embracing Cutting-Edge Solutions the Industry has to Offer

Embracing cutting-edge solutions is strategic and imperative for technicians navigating the constantly changing landscape of automotive maintenance and repair.

Nadine Battah
Tool Time Podcast: Clore Automotive

Jim O’Hara from Clore Automotive joins Nadine Battah and Eric Garbe.

TechShop, ShopOwner Offer $50 For Good Guesses

Guess the Tool for a chance at cold hard cash!

GM, Honda Begin Volume Production of Fuel Cell Systems

GM and Honda will produce fuel cells that will be two-thirds less expensive compared to Honda’s 2019 Clarity fuel cell.

Other Posts

Toyota Bringing Battery EV Production to Kentucky

It will invest $1.3 billion at its flagship Kentucky facility for future electrification efforts, including assembly of an all-new, three-row battery electric SUV for the U.S. market.

Repairify Announces Executive Leadership Changes

The company has named Craig Edmonds as president of asTech among other executive appointments.

New Hyundai/Kia Air Skirt Helps to Maximize EV Range

The Active Air Skirt (AAS) helps improve driving range and stability of EVs, the companies said.

StoreDot Introduces Extreme Fast Charging Concept Vehicle

The company’s I-Beam XFC includes a proprietary “100in5” cell technology, which enables charging 100 miles of range in just five minutes.